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Smith Optics Mainline MIPS

Smith Optics Mainline MIPS
  • Color: White/Black
  • Color: AC Iago Garay
  • Color: Matte Slate/Fool'S Gold/Terra
  • Color: Matte Spruce/Safari
  • Color: Matte Stone/Moss
  • Color: Matte Amethyst/Bone
  • Color: Matte Archive Wild Child
  • Color: Matte Black
  • Color: Matte Bone Gradient
  • Color: Matte Cinder Haze
  • Color: Matte Coyote/Indigo
  • Color: Matte Dusk/Bone
  • Color: Matte Midnight Navy/Sagebrush
Size: Select size
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
AC Iago Garay / Medium 716736336428 E007423585559
AC Iago Garay / Large 716736336435 E007423585962
Matte Slate/Fool'S Gold/Terra / Small 716736745473 E007420XI5155
Matte Slate/Fool'S Gold/Terra / Medium 716736745480 E007420XI5559
Matte Slate/Fool'S Gold/Terra / Large 716736745497 E007420XI5962
Matte Spruce/Safari / Small 716736336473 E007423L45155
Matte Spruce/Safari / Medium 716736336480 E007423L45559
Matte Spruce/Safari / Large 716736336497 E007423L45962
Matte Stone/Moss / Small 716736752761 E007420XL5155
Matte Stone/Moss / Medium 716736752778 E007420XL5559
Matte Stone/Moss / Large 716736752785 E007420XL5962
White/Black / Small 716736336503 E007423OD5155
White/Black / Medium 716736336510 E007423OD5559
White/Black / Large 716736336527 E007423OD5962 MAI22767571G
Matte Amethyst/Bone / Small 716736745411 E007420WP5155
Matte Amethyst/Bone / Medium 716736745428 E007420WP5559
Matte Amethyst/Bone / Large 716736745435 E007420WP5962
Matte Archive Wild Child / Small 716736924526 E007421NZ5155
Matte Archive Wild Child / Medium 716736924533 E007421NZ5559
Matte Archive Wild Child / Large 716736924540 E007421NZ5962
Matte Black / Small 716736216850 E007429RX5155
Matte Black / Medium 716736216867 E007429RX5559
Matte Black / Large 716736216874 E007429RX5962
Matte Bone Gradient / Small 716736745442 E007420WR5155
Matte Bone Gradient / Medium 716736745459 E007420WR5559
Matte Bone Gradient / Large 716736745466 E007420WR5962
Matte Cinder Haze / Small 716736336442 E007423K45155
Matte Cinder Haze / Medium 716736336459 E007423K45559
Matte Cinder Haze / Large 716736336466 E007423K45962
Matte Coyote/Indigo / Small 716736924557 E007421O65155
Matte Coyote/Indigo / Medium 716736924564 E007421O65559
Matte Coyote/Indigo / Large 716736924571 E007421O65962
Matte Dusk/Bone / Small 716736924588 E007421O85155
Matte Dusk/Bone / Medium 716736924595 E007421O85559
Matte Dusk/Bone / Large 716736924601 E007421O85962
Matte Midnight Navy/Sagebrush / Small 716736924618 E007421PQ5155
Matte Midnight Navy/Sagebrush / Medium 716736924625 E007421PQ5559
Matte Midnight Navy/Sagebrush / Large 716736924632 E007421PQ5962