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Smith Optics Mainline MIPS

Smith Optics Mainline MIPS
  • Color: Matte Amethyst/Bone
  • Color: AC Iago Garay
  • Color: Matte Archive Wild Child
  • Color: Matte Black
  • Color: Matte Cinder Haze
  • Color: Matte Bone Gradient
  • Color: Matte Spruce/Safari
  • Color: White/Black
  • Color: Matte Coyote/Indigo
  • Color: Matte Dusk/Bone
  • Color: Matte Slate/Fool'S Gold/Terra
  • Color: Matte Stone/Moss
  • Color: Matte Midnight Navy/Sagebrush
$265.00 - $400.00
Please select options Unavailable


Give credit where credit's due. Thank your mom, your legs, and your gear for giving you the opportunity to land that rocky gap. Made for going big, going fast, or both, the Smith Mainline is our pinnacle, downhill certified enduro bike helmet. Safety innovations like Koroyd and MIPS provide energy-absorbing impact protection so you have the confidence to get aggressive on the trail. It doesn't matter if you're slaying the EWS in Whistler or suffering through the last stage of your local enduro race, you need a breathable, lightweight helmet that pairs well with goggles and fits like a glove. The Mainline integrates with your bike goggles for efficient venting and fog-free vision. Multiple pad sets including liners and neck-rolls let you customize the fit.

PROTECTION: Complete Koroyd coverage for lightweight, energy-absorbing and ventilated impact protection, MIPS Brain Protection System reduces rotational forces caused by angled impacts to the head

FIT / INTEGRATION: Three washable cheek pad kits, two crown liners and two neck rolls let you fine tune the fit, D-ring chin strap fastener for a snug fit, Designed for ultimate integration with Smith performance goggles for maximum comfort, venting and storage convenience, AirEvac ventilation system integrates with Smith goggles for fog-free lenses

FEATURES: 21 fixed vents for consistent airflow, Adjustable visor, Hybrid X-STATIC / Ionic+ anti-bacterial performance lining for odor resistance

WEIGHT: (Size M, MIPS) 27oz / 770g


SizeHead Circumference
X-Small 48-52cm
Small 51-55cm
Medium 55-59cm
Large 59-62cm
X-Large 61-65cm

CPSC, CE EN 1078, ASTM F1952

Part Numbers

Option UPC MPN Store SKU
AC Iago Garay / Small 716736336411 E007423585155 SMI3338645L
AC Iago Garay / Large 716736336435 E007423585962 SMI33111788E
Matte Slate/Fool'S Gold/Terra / Small 716736745473 E007420XI5155 SMI52270365M
Matte Slate/Fool'S Gold/Terra / Large 716736745497 E007420XI5962 SMI52783334M
Matte Spruce/Safari / Small 716736336473 E007423L45155 SMI39537294L
Matte Spruce/Safari / Large 716736336497 E007423L45962 SMI39366496E
Matte Stone/Moss / Small 716736752761 E007420XL5155 SMI42276791M
Matte Stone/Moss / Medium 716736752778 E007420XL5559 SMI43145684M
Matte Stone/Moss / Large 716736752785 E007420XL5962 SMI42220844M
White/Black / Small 716736336503 E007423OD5155 SMI38837542M
White/Black / Medium 716736336510 E007423OD5559 SMI3952964M
White/Black / Large 716736336527 E007423OD5962 SMI38637196M
Matte Amethyst/Bone / Small 716736745411 E007420WP5155 SMI45214058M
Matte Amethyst/Bone / Medium 716736745428 E007420WP5559 SMI46366516M
Matte Amethyst/Bone / Large 716736745435 E007420WP5962 SMI45260942M
Matte Archive Wild Child / Small 716736924526 E007421NZ5155 SMI57568590D
Matte Archive Wild Child / Medium 716736924533 E007421NZ5559 SMI5887282D
Matte Archive Wild Child / Large 716736924540 E007421NZ5962 SMI5755727D
Matte Black / Small 716736216850 E007429RX5155 SMI38643177K
Matte Black / Medium 716736216867 E007429RX5559 SMI395771K
Matte Black / Large 716736216874 E007429RX5962 SMI38552498K
Matte Bone Gradient / Small 716736745442 E007420WR5155 SMI45412970M
Matte Bone Gradient / Medium 716736745459 E007420WR5559 SMI46777363M
Matte Bone Gradient / Large 716736745466 E007420WR5962 SMI45857421M
Matte Cinder Haze / Medium 716736336459 E007423K45559 SMI44315362M
Matte Coyote/Indigo / Small 716736924557 E007421O65155 SMI53644094O
Matte Coyote/Indigo / Medium 716736924564 E007421O65559 SMI54142386O
Matte Coyote/Indigo / Large 716736924571 E007421O65962 SMI53336789O
Matte Dusk/Bone / Small 716736924588 E007421O85155 SMI498611E
Matte Dusk/Bone / Medium 716736924595 E007421O85559 SMI50242477E
Matte Dusk/Bone / Large 716736924601 E007421O85962 SMI4988379E
Matte Midnight Navy/Sagebrush / Small 716736924618 E007421PQ5155 SMI62775586H
Matte Midnight Navy/Sagebrush / Medium 716736924625 E007421PQ5559 SMI63875918H
Matte Midnight Navy/Sagebrush / Large 716736924632 E007421PQ5962 SMI62318139H