Smith Mainline MIPS Mountain Bike Helmet

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    Color: Matte Black
    Matte Black
    Matte Sage/Red Rock
    Size: S
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    Description
    Features
    Specs
    Size Chart
    Description

    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.

    Features

    MAXIMIZE VENTILATION
    The well ventilated Koroyd® panels ensure consistent, engineered airflow whether riding or stationary. In addition, the Smith helmets feature internal air channels that combine with open intake and exhaust ports to maximize ventilation.

    PRECISE FIT
    Ultimate integration starts with the precise fit of the Smith goggle and helmet. Our helmets are designed to match the curvature of the goggle frame, eliminating "gaper gap" and allowing precise alignment between the helmet AirEvac and the goggle venting systems.

    MAXIMUM AIRFLOW
    Goggles fog when standard helmets trap warm, moist air in the goggle chamber. Smith's AirEvac ventilation systems generate maximum airflow and pull warm, fog-causing air out of the goggle. The warm air is allowed to exhaust out of the top of the goggle and begin its path through the helmet's AirEvac system.

    KOROYD®
    Koroyd® absorbs more energy on impact, offers better design flexibility and guarantees more efficient ventilation compared to materials traditionally used in helmet construction. The cylinders form a crumple zone and collapse evenly on impact. Thus, Koroyd® absorbs energy more efficiently and with less bulk than other protective materials on the market. Unlike traditional protective materials, Koroyd® cylinders absorb and convert more kinetic energy, while increasing airflow and reducing overall weight. Not all helmets are created equal.

    MIPS®
    The MIPS® Brain Protection System (BPS) is found inside the helmet, generally between the comfort padding and the EPS (a high-quality foam used to reduce energy). For certain impacts, the MIPS® BPS can reduce harmful forces transmitted to the brain. MIPS® stands for Multi-directional Impact Protection System.

    Specs
    • 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
    • CPSC CE EN 1078, ASTM F1952 downhill, and NTA-8776 E-Bike certified
    • 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
    • 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
    • 21 fixed vents for consistent airflow
    • Adjustable visor
    • Hybrid X-STATIC® / Ionic+® antibacterial performance lining for odor resistance
    • Weight (Size M, MIPS®): 27 oz / 770 g
      Size Chart
      Snow Helmets

      SIZES

      S

      Asia Fit S

      M

      Asia Fit M

      L

      Race L

      Vida L

      Asia Fit L

      XL

      Youth One Size

      Youth Small

      Youth Medium

      Head Circumference

      51-55 cm

      55-59 cm

      55-59 cm

      59-63 cm

      59-63 cm

      59-61 cm

      59-61 cm

      63-67 cm

      63-67 cm

      58-56 cm

      48-53 cm

      53-58 cm

       

      Bike Helmets

      SIZE

      XS

      S

      M

      L

      XL

      Head Circumference

      48 - 52 cm

      51-55 cm

      55-59 cm

      59-62 cm

      61-65 cm

       

      Youth Snow Helmets

      Size

      Head Circumference

      YS

      48-53cm

      YM

      53-58cm

       

      Glide JR Helmet

      Size

      Head Circumference

      YXS

      48-52cm

      YS

      51-55cm

      YM

      55-59cm

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