Smith Mainline MIPS Bike Helmet

$280.99

ColorMatte Black, Matte Chalk, Matte Archive Flamingo, Matte Royal Navy/Summit
SizeS, M, L
BrandSmith
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SKU: REI-179799 Categories: , , Brand:
Description

Featuring complete Koroyd coverage and a Mips® rotational system, the Smith Mainline helmet provides exceptional protection; plus, internal air channels and open exhaust ports maximize breathability.

To find your size, position a tape measure just above your ears and about 1 in. above your eyebrows. Keep the tape level to measure the circumference around the largest part of your head and then find the corresponding size in the Technical specs info.

Features
  • With 21 optimized vents, the AirEvac ventilation system allows goggles and helmet to function as a system, venting warm, moist air away from the goggles—and away from the head
  • Koroyd provides superior impact absorption, design flexibility and ventilation when compared to materials traditionally used in helmet construction
  • Utilizing crumple-zone cylinders that crush uniformly on impact, Koroyd manages energy more efficiently with less volume than traditional protection materials
  • Rotational motion can cause brain injuries; with Mips, a low-friction layer slides 10 to 15 mm in all directions, reducing rotational motion to the brain during impact
  • Unique pad kit includes 3 sets of sized cheekpads, 2 sets of sized crown liners and 2 neck rolls to ensure a proper fit—all of which can easily be removed for cleaning
  • Pads are made from Hybrid X-Static/XT2 for antibacterial performance
  • Ride with confidence, knowing the Mainline is secured with a tried-and-true D-ring chin strap fastener
  • Lightweight Aerocore in-mold construction
  • Adjustable visor
  • Camera- and light-mount compatible
  • Downhill certification: ASTM F1952
  • Certification: CPSC, CE EN 1078
  • E-Bike helmet certification: NTA-8776
  • Comes with a Smith drawstring helmet bag
Specifications
Best Use Mountain Biking
Helmet Style Full-face
Helmet Construction In-mold
Shell Material Polycarbonate
Head Circumference 20.1-21.7 inches, 21.7-23.2 inches, 23.2-24.4 inches
Vents 21
Visor/Brim Yes
Weight 1 lb. 11 oz.
Gender Unisex