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Baselayers

The first step on the road to comfort starts where fabric touches the skin. And when it comes to creating a smooth and soft interface, nothing compares to a good cycling base layer. They're proficient at regulating temperature and managing moisture build-up, and with little to no seams at work, they'll nearly eliminate the risk of chafing or abrasion.  They're available in multiple fabric weights to provide the specific performance you need to control your climate in every season.

Shop our best selection online with items available from 45NRTH, Bontrager, Pearl Izumi, Specialized and more!  We have something for every rider.   Shop with confidence with Bontrager's Unconditional Guarantee combined with outstanding customer service, free standard ground shipping on orders over $80* plus free returns*  We are Canada's Best Online Bike Shop.

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$15.00 $75.00 80% Off
Everything you need, right where you want it. Sure, it's a simple idea on paper, but there's a reason why there isn't anything else like our Men's Mountain Vest with SWAT™ on the market today—it rules. To start, it features three integrated pockets that keep your trail essentials right where you want them—on the body. This way, you can leave the stifling, sweaty backpack at home without having to leave a thing behind. Keys, phone, pumps (there's a special loop for that), tubes—you name it, and it'll probably fit in one of these pockets. Now, you're probably thinking, "Won't this be hot?" The simple answer is no, but here's why. We made this vest from an extremely lightweight and highly breathable mesh material called VaporRize™. In fact, if you even notice it at all, you'll find that its added moisture management properties make it feel more like a base layer than a portage device.
Specialized Seamless Sleeveless Base Layer
$65.00
For technical clothing designed to be next to skin, seamless construction reduces edges and stitches on your body that could be sources of irritation and inconsistent stretch. Using special cylindrical knitting machines, we engineer areas of stretch, compression, open mesh, or closed areas for the ideal composition. Our seamless base layer is designed to be worn year-round, under jerseys or outerwear, to accelerate moisture away from the body, keeping you cool in the summer and dry in the winter. Compressive, articulated, form fit. - Synthetic yarns are blended to have a soft feel and to move moisture away from the skin, while also retaining a compressive feel. - Targeted stretch and support are built-in, so the base layer will hold and move with the body throughout the movements of cycling. - Seamless construction ensures the closest possible fit for maximum moisture management, while the elimination of seams also guarantees that chafing will be a non-issue. - Form-Fit closely and precisely conforms to the curves of the body, ensuring an unrivaled level of fit.
Specialized Women's SL Baselayer
$65.00
Pulling on an extra layer when the thermometer's rising might seem counterintuitive, but a proper base layer, like the Women's SL Short Sleeve Base Layer, can make all the difference. Wearing a lightweight base layer helps wick sweat away from the body, generating an even greater cooling effect. This is all due to the wicking properties of our VaporRize mesh fabric. To top it off, features like soft-puff stitching eliminate abrasion-inducing seams, while our Slim Fit conforms to your body. - Form Fit closely and precisely conforms to the curves of the body, ensuring an unrivaled level of fit - Soft puff stitching gets rid of chafing by greatly reducing the number of seams - VaporRize mesh fabrics are engineered to rapidly wick moisture away from the skin, keeping you cool, dry, and comfortable in any condition
Smartwool Seamless Racerback Bra
$75.00
FEATURES - Seamlessly knit Merino wool interior for enhanced next-to-skin comfort combined with an outer layer designed for support - Engineered knit cups designed to provide shape and lift - Removable padding - Ribbed bottom band FIT: Slim GARMENT WEIGHT: 80 g or 2.82 oz CONTENT: Shell: 82% Nylon, 18% Elastane. Liner: 70% Merino Wool, 20% Nylon, 10% Elastane. Exclusive Of Decoration. SIZES: XS,S,M,L,XL
Smartwool Seamless Strappy Bra
$65.00
FEATURES -Seamlessly knit Merino wool interior for enhanced next-to-skin comfort combined with an outer layer designed for support -Engineered knit cups designed to provide shape and lift - Removable padding - Ribbed bottom band FIT Slim GARMENT WEIGHT 80 g or 2.82 oz CONTENT Shell: 82% Nylon, 18% Elastane. Liner: 70% Merino Wool, 20% Nylon, 10% Elastane. Exclusive Of Decoration. SIZES XS,S,M,L,XL
Rapha Pro Team Base Layer - Short Sleeve
$95.00
An exceptionally lightweight and breathable layer that sits close to the skin, wicking sweat away from the body to aid temperature regulation. A quality base layer works hard to keep sweat away from the skin, improving temperature regulation and reducing discomfort. Pro Team Base Layers have been updated this year with a new fabric that is lighter, more breathable, and has improved stretch. Low-profile seams—both flatlock and bonded—are used throughout to reduce irritation, and the fabric's improved stretch makes for an improved fit. Anti-bacterial and wicking treatments are applied to the fabric to keep it feeling fresh even on long rides. - Lightweight and breathable fabric - Bonded seams at the shoulders and yoke - Race-ready fit sits close to the skin - Printed with phrases from road racing's history - Anti-bacterial and wicking treatments applied to the fabric - Stretch side panels ensure a close fit
Rapha Pro Team Thermal Base Layer - Long Sleeve
$130.00
Offering high-performance warmth in the coldest weather, the Pro Team Thermal Base Layer is perfect for fast-paced training and racing in wintry conditions. Designed for high-tempo riding and racing when the temperature is hovering around, or below freezing, the Pro Team Thermal Base Layer takes the Deep Winter Base Layer as its inspiration and adds a Pro Team technical twist. This base layer is made from a polyester fabric that has a slightly bobbled finish against the skin, engineered to trap air and keep your body warm without compromising the fabric's quick-drying and fast-wicking properties. This ensures that even when you sweat during hard efforts, moisture won't work against you on your cool down. Reflective bars printed on the neck provide visibility under dark skies and the base layer has a tall snood that covers up to the mouth and ears when worn high. As with all Pro Team products, the base layer is cut for a low on-the-bike position—ready for you to drop the hammer, all winter. - Made of a warm, quick-drying polyester fabric - Two fabric weights, with thicker insulation across chest and arms for added warmth - Tall collar covers mouth and ears when worn high - Same ‘Race' cut as other Pro Team base layers—for a low on-bike position - Front: 84% Polyester / 16% Spandex - Back: 91% Polyester / 9% Spandex
Rapha Women's Thermal Base Layer
$130.00
A high-performance layer for training and racing in wintry conditions. Designed for high-tempo riding and racing when the temperature is close to freezing, the Women's Pro Team Thermal Base Layer takes the Classic Deep Winter Base Layer as inspiration and adds a technical twist. This base layer is made from a polyester fabric that has a soft grid finish against the skin, engineered to trap air and keep your body warm without compromising the fabric's quick-drying and fast-wicking properties. This ensures that even when you sweat during hard efforts, moisture won't work against you on your cool down. The base layer has a tall snood which covers up to the mouth and ears when worn high, with a gap at the back for longer hair. - Made of a warm, quick-drying polyester fabric - Two fabric weights, with thicker insulation across chest and arms for added warmth - Tall collar covers mouth and ears when worn high - Same 'Race' cut as other Women's Pro Team base layers—for a low on-bike position Front - 84% Polyester / 16% Spandex Back - 91% Polyester / 9% Spandex
Pearl Izumi Women's Merino Thermal Long Sleeve Baselayer
$150.00
This is our heaviest base layer, at 250g/m2. It combines our 18.5-micron responsibly sourced Merino and recycled polyester technical fibers in a remarkable construction that positions the polyester next to your skin for maximum wicking while the wool faces out for superior insulation. With its long sleeves it is the ideal garment to layer beneath one of our AmFIB jackets. Thumb loops keep the sleeves in place as you pull on your jersey. - Mid-weight Transfer Merino fabric combines wool and recycled polyester for sustainable technical performance. - Unique plated fabric construction places polyester next to skin and merino on the exterior for superior moisture transfer and thermal regulation. - Made using fine 18.5-micron merino wool for superior comfort. - Recycled Repreve XS Polyester technical fibers are made from recycled plastic water bottles. - Set in sleeve construction for easy layering and versatility.
G-Form Youth Pro-X3 Bike Short Liner
$134.99
- Body-mapped, impact-absorbing SmartFlex pads offer form-fitting and lightweight protection that is flexible as you ride and hardens on impact - Ventilated SmartFlex hip pads allow airflow to keep wearer dry and comfortable - Moisture-wicking, UPF 50+ compression fabric - Side leg pocket - Machine washable - CE PPE II—15613 Impact Attenuation / 1621-1 coverage
Fox Racing Baseframe Pro Short Sleeve Base Layer
$209.95
Low-profile sleeveless baselayer guard The Baseframe Pro Short Sleeve is a breathable baselayer with built in guards on the shoulder. It's designed to be worn under your jersey for low-profile coverage. It includes a removeable back insert, increasing your impact protection, while the fabric wicks away sweat as you ride and keeps you cool. The Baseframe Pro will fit snug and secure—the polymer softens to conform to your body as it is warmed by your own heat—offering minimal restrictions and maximum benefit. The more you ride, the better it feels. - Exceeds EN1621-1 level 1 back certification including high and low temperature conditions - Removable CE certified D3O Viper back insert features world leading impact protection technology - Large perforation and flex grooves in the back foam contours and flexes with rider movement - EN1621-1 Level 1 D3O shoulder inserts for additional protection - Body heat activates (softens) the polymer to conform to body - Moisture wicking, open stretch mesh for breathability CERTIFICATIONS - Exceeds EN1621-1 level 1 back certification - EN1621-1 level 1 shoulder inserts for additional protection
Endura Fishnet S/L Baselayer II
$39.99
To keep cool when working hard, moving moisture away from your skin is top priority. In these situations, the Fishnet Baselayer is the garment to use. Hydrophilic polypropylene yarn rapidly transports moisture away from your skin, helping your body focus on moving forwards instead of keeping cool. - Open, "fishnet" engineered knit for unbeatable moisture management - Rapid wicking yarn - Seamless construction prevents chafing - High stretch, athletic skin-tight fit
Specialized Men's Power Grid Sleeveless Baselayer
$90.00
When the mercury drops, reach for the Power Grid Sleeveless Baselayer. It'll add some extra warmth for your core, but still be plenty breathable—avoiding the dreadful clamminess that can come with warm base layers. - 4-way stretch fabrication allows for easy layering under any kit. - Fabric Content: 91% Polyester, 9% Spandex Knit.
Specialized Polartec Power Grid Dickey
$60.00
Keep your neck gaiter secured in place with our unique Dickey design that attaches this key accessory to a base layer upper body. - Power Mesh back provides a secure fit around shoulders and upper chest, to keep the neck gaiter in place and prevents it from sliding upward during your ride. - Fabric Content: 91% Polyester, 9% Spandex Knit.
Specialized Women's Power Grid Sleeveless Baselayer
$90.00
When the mercury drops, reach for the Power Grid Sleeveless Baselayer. It'll add some extra warmth for your core, but still be plenty breathable—avoiding the dreadful clamminess that can come with warm base layers. - 4-way stretch fabrication allows for easy layering under any kit. - Fabric Content: 91% Polyester, 9% Spandex Knit.
Specialized Women's SL Sleeveless Baselayer
$55.00
Pulling on an extra layer when the thermometer's rising might seem counterintuitive, but a proper base layer, like the Women's SL Sleeveless Base Layer, can make all the difference. Wearing a lightweight base layer helps wick sweat away from the body, generating an even greater cooling effect. This is all due to the wicking properties of our VaporRize mesh fabric. To top it off, features like soft-puff stitching eliminate abrasion-inducing seams, while our Slim Fit conforms to your body. - Cycling-specific fit and construction complement your movements in the saddle, while also allowing ample room for layering, eliminating bulk - Soft puff stitching gets rid of chafing by greatly reducing the number of seams - VaporRize mesh fabrics are engineered to rapidly wick moisture away from the skin, keeping you cool, dry, and comfortable in any condition - Women's-specific Form Fit closely and precisely conforms to the curves of the body, ensuring an unrivaled level of fit
Specialized Women's Seamless Sleeveless Baselayer
$65.00
For technical clothing designed to be next to skin, seamless construction reduces edges and stitches on your body that could be sources of irritation and inconsistent stretch. Using a special cylindrical knitting machine, we engineer areas of stretch, compression, open mesh or closed areas for the ideal composition. Our seamless base layer is designed to be worn year-round, under jerseys or outerwear, to accelerate moisture away from the body, keeping you cool in the summer and dry in the winter. Compressive, articulated, form fit. - Synthetic yarns are blended to have a soft feel and to move moisture away from the skin, while also retaining a compressive feel. - Targeted stretch and support are built-in, so the base layer will hold and move with the body throughout the movements of cycling. - Seamless construction ensures the closest possible fit for maximum moisture management, while the elimination of seams also guarantees that chafing will be a non-issue. - Women's-specific Form Fit closely and precisely conforms to the curves of the body, ensuring an unrivaled level of fit.
Pearl Izumi Men's Cargo Bib Liner Shorts
$150.00
Many experienced riders have opted for the comfort of road bibs under shell shorts for years. They prefer the feel of a bib, but road shorts are not made to be covered with a durable shell short, and the combination can be warmer than ideal. Enter Pearl Izumi's Cargo Bib Liner Short, which not only improves ventilation versus traditional road shorts, but also adds integrated storage with three rear jersey-type pockets and two lower pockets on the thigh for trail essentials, like water, tools, and spare tubes. The superior ELITE Escape 1:1 Chamois takes saddle comfort to a whole new level. With this ultimate bib liner you can ditch your hydration pack for all but your longest rides. Features: - New Transfer Mesh body fabric provides an amazing next-to-skin feel - Smooth fabric across the front of the legs slides easily under shell shorts and ensures a friction-free pedaling experience - Optimized with superior ELITE Escape 1:1 Chamois - Three pockets on the lower back of the bib, and two thigh pockets for carrying ride essentials - 10” inseam
Pearl Izumi Men's Cargo Liner Shorts
$100.00
Engineered to deliver friction free pedaling, performance, and phenomenal breathability, the Pearl Izumi Men's Cargo Liner Shorts are a must have for serious trail riders. Smooth fabric on the front of the thighs allows the liner to slide easily beneath your shell shorts and the Transfer Mesh main body delivers unbelievable breathability. Thigh pockets near the leg openings can conveniently stash your food, ID, money, or tools. And they are easy to access by flipping up the bottom of your shell short. The superior ELITE Escape 1:1 Chamois takes your saddle comfort to a whole new level. Features: - New Transfer Mesh body fabric provides an amazing next-to-skin feel - Smooth fabric across the front of the legs slides easily under shell shorts and ensures a friction-free pedaling experience - Optimized with the superior ELITE Escape 1:1 Chamois - Two thigh pockets for carrying ride essentials - 10” inseam
Pearl Izumi Men's Merino Baselayer
$120.00
This highly technical base layer delivers true sustainable performance. You've never worn a Merino base layer like this. We use a unique fabric construction method to place polyester fibers against your skin to improve wicking, and Merino facing the jersey for temperature regulation and odor control. The 18.5-micron Merino is responsibly sourced while the polyester is spun from recycled water bottles. The polyester also increases the base layer’s durability. The short sleeves feature a set-in construction for a versatile next-to-skin form fit. - Transfer Merino fabric combines wool and recycled polyester for sustainable technical performance. - Unique plated fabric construction places polyester next to skin and merino on the exterior for superior moisture transfer and thermal regulation. - Made using fine 18.5-micron merino wool for superior comfort. - Recycled Repreve XS Polyester technical fibers are made from recycled plastic water bottles. - Set in sleeve construction for easy layering and versatility. - Wool Blend Performance certified by the Woolmark Company to ensure the highest quality product.
Pearl Izumi Men's Merino Long Sleeve Baselayer
$125.00
This highly technical base layer delivers true sustainable performance. The key to staying comfortable on cold days is staying dry. We used a construction method called plating to place recycled polyester technical fibers next to skin on our responsibly sourced Merino wool, long-sleeve base layer. By putting polyester next to the rider’s skin, it transports moisture away to the Merino layer where it can evaporate even as the wool acts as insulation. The base layer uses a set-in sleeve design for a versatile form-following fit to make layering easy. - Transfer Merino fabric combines wool and recycled polyester for sustainable technical performance. - Unique plated fabric construction places polyester next to skin and merino on the exterior for superior moisture transfer and thermal regulation. - Made using fine 18.5-micron merino wool for superior comfort. - Recycled Repreve XS Polyester technical fibers are made from recycled plastic water bottles. - Set in sleeve construction for easy layering and versatility. - Wool Blend Performance certified by the Woolmark Company to ensure the highest quality product.
Pearl Izumi Men's Merino Thermal Long Sleeve Baselayer
$150.00
This is our heaviest base layer, at 250g/m2. It combines our 18.5-micron responsibly sourced Merino and recycled polyester technical fibers in a remarkable construction that positions the polyester next to your skin for maximum wicking while the wool faces out for superior insulation. With its long sleeves it is the ideal garment to layer beneath one of our AmFIB jackets. Thumb loops keep the sleeves in place as you pull on your jersey. - Mid-weight Transfer Merino fabric combines wool and recycled polyester for sustainable technical performance. - Unique plated fabric construction places polyester next to skin and merino on the exterior for superior moisture transfer and thermal regulation. - Made using fine 18.5-micron merino wool for superior comfort. - Recycled Repreve XS Polyester technical fibers are made from recycled plastic water bottles. - Set in sleeve construction for easy layering and versatility.
Pearl Izumi Minimal Liner Short
$54.99
When you go by bike, some rides call for just a bit of cushion without the bulk of a standard cycling short. That' where the Minimal Liner Short comes in. Think of it as an upgraded pair of boxer briefs with our slim and breathable Versa chamois. This is your go-to liner for hot laps on your favorite trail, a day of lift access shredding, or your daily commute.
Pearl Izumi Transfer Mesh Short Sleeve Baselayer
$89.99
The perfect foundation to any high performance kit. This Men's Transfer Mesh Short Sleeve Baselayer is designed to regulate body temperature through moisture control to keep you riding in comfort across a broad temperature range. The airy, high-stretch PRO Transfer Mesh fabric is enhanced with In-R-Cool ® to improve thermoregulation and keep you cooler and dryer. GoFresh™â„¢ keeps the funk at bay and even allows this piece to be worn multiple times between washes, so you'll never have to ride without. Wear this baselayer on its own for the trainer, under a short sleeve jersey during the heat of summer, and then add it to your layering system in the spring or fall months for an additional layer of insulation.
Pearl Izumi Transfer Mesh Sleeveless Baselayer
$79.99
The perfect foundation to any high-performance kit. This Men's Transfer Mesh Sleeveless Baselayer is designed to regulate body temperature through moisture control to keep you riding in comfort across a broad temperature range. The airy high-stretch PRO Transfer Mesh fabric is enhanced with In-R-Cool® to improve thermoregulation and keep you cooler and dryer. GoFresh™ keeps the funk at bay and even allows this piece to be worn multiple times between washes. Wear this baselayer on its own for the trainer, under a short sleeve jersey during the heat of summer, and then add it to your layering system in the spring or fall months for an additional layer of insulation.
Pearl Izumi Women's Cargo Liner Shorts
$100.00
Engineered to deliver friction free pedaling, performance, and phenomenal breathability, the Pearl Izumi Women's Cargo Liner Shorts are a must have for serious trail riders. Smooth fabric on the front of the thighs allows the liner to slide easily beneath your shell shorts and the Transfer Mesh main body delivers unbelievable breathability. Thigh pockets near the leg openings can conveniently stash your food, ID, money, or tools. And, they are easy to access by flipping up the bottom of your shell short. The superior W ELITE Escape 1:1 Chamois takes your saddle comfort to a whole new level. Features: - New Transfer Mesh body fabric provides an amazing next-to-skin feel - Smooth fabric across the front of legs slides easily under shell shorts, providing a friction-free pedaling experience - Optimized with the superior W ELITE Escape 1:1 Chamois - Two thigh pockets for carrying ride essentials - 8” inseam
Pearl Izumi Women's Merino Baselayer
$120.00
You’ve never worn a Merino base layer like this. We use a unique fabric construction method to place polyester fibers against your skin to improve wicking and Merino facing the jersey for temperature regulation and odor control. The 18.5-micron Merino is responsibly sourced while the polyester is spun from recycled water bottles. The polyester also increases the base layer’s durability. The short sleeves feature a set-in construction for a versatile next-to-skin form fit. - Transfer Merino fabric combines wool and recycled polyester for sustainable technical performance. - Unique plated fabric construction places polyester next to skin and merino on the exterior for superior moisture transfer and thermal regulation. - Made using fine 18.5-micron merino wool for superior comfort. - Recycled Repreve XS Polyester technical fibers are made from recycled plastic water bottles. - Set in sleeve construction for easy layering and versatility. - Wool Blend Performance certified by the Woolmark Company to ensure the highest quality product.
Pearl Izumi Women's Merino Long Sleeve Baselayer
$125.00
The key to staying comfortable on cold days is staying dry. We used a construction method called plating to place recycled polyester technical fibers next to skin on our responsibly sourced Merino wool, long-sleeve base layer. By putting polyester next to the rider's skin, it transports moisture away to the Merino layer where it can evaporate even as the wool acts as insulation. The base layer uses a set-in sleeve design for a versatile form-following fit to make layering easy. - Transfer Merino fabric combines wool and recycled polyester for sustainable technical performance. - Unique plated fabric construction places polyester next to skin and merino on the exterior for superior moisture transfer and thermal regulation. - Made using fine 18.5-micron merino wool for superior comfort. - Recycled Repreve XS Polyester technical fibers are made from recycled plastic water bottles. - Set in sleeve construction for easy layering and versatility. - Wool Blend Performance certified by the Woolmark Company to ensure the highest quality product.
Pearl Izumi Women's Transfer Mesh Tank Top Baselayer
$69.99 - $79.99
The perfect foundation for any high-performance kit. This Women's Transfer Mesh Tank Baselayer is designed to regulate body temperature through moisture control to keep you riding in comfort across a broad temperature range. The airy high-stretch PRO Transfer Mesh fabric is enhanced with In-R-Cool ® to improve thermoregulation and keep you cooler and dryer. GoFresh™â„¢ keeps the funk at bay and even allows this piece to be worn multiple times between washes. Wear this baselayer on its own for the trainer, under a short sleeve jersey during the heat of summer, and then add it to your layering system in the spring or fall months for an additional layer of insulation. FEATURES - PRO Transfer Mesh fabric is highly breathable and quick drying - Sweat-activated In-R-Cool® technology improves thermal regulation - GoFres anti-odor technology, bluesign® approved - Designed for all-day performance from chilly starts to hot finishes - Form fit FABRIC - 64% recycled polyester, 26% polyester, 10% elastane Made in China *Model is 5'9" 125 lbs, wearing a Medium
Giro Base Liner Bib Short
$129.99
Nothing can ruin a fun day on the trails like an uncomfortable connection to your saddle. Giro designed their Men's Base Liner Bib Short to be lightweight and comfortable under your baggy shorts, with a chamois that allows you to get rowdy on the trails all day. They are constructed with lightweight, breathable materials and moisture-wicking side panel mesh, and they feature three Expandable Storage Pockets (ESP) so you can carry everything you need without a pack. And since you gotta go when you gotta go, the Men's Base Liner Bib Short features a fly opening. - Base liner chamois - Lightweight, breathable material - Wicking side-panel mesh - Breathable mesh straps - Fly opening - Leg gripper - 3 Expandable Storage Pockets (ESP) - Formfitting - Fabric: polyester, spandex, elastane, nylon
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