The Semiannual Sale - Up to 50% Off Select Styles

Detail Images

  • Smith - Portal MIPS Helmet - Black
  • Smith - Portal MIPS Helmet - Matte White
  • Smith - Portal MIPS Helmet - Matte Imperial

Current Color

  • Smith - Portal MIPS Helmet - Black
  • Smith - Portal MIPS Helmet - Matte White
  • Smith - Portal MIPS Helmet - Matte Imperial

Smith Portal MIPS Helmet


Free 2-Day shipping on orders over $50. Learn More

Select a Size:

Select options
  • Select options
    • S
    • M
    • L

    Select a Color:

    Select options
  • Select options
    • Black
    • Matte White
    • Matte Imperial

    1 Review


    Decked out for the everyday rider.

    You might not be a podium-hungry cyclist, or not crave race day at all for that matter, but that shouldn't hold you back from riding with comfort and protection. Fortunately with the Smith Portal MIPS Helmet you can find the perfect balance between performance, technical features, and comfort for your daily cruises on the trail or pavement. It's packed with a full 18-vents, optimally placed to keep you cool on strenuous climbs, plus AirEvac ventilation system that boosts airflow under your sunglasses to prevent fogging when humidity is high.

    Designed with the everyday rider in mind, Smith crafts the Portal with an in-mold polycarbonate shell, and ample EPS foam to absorb impacts. Since most crashes on the bike rarely result in a 90-degree head-on impact, Smith equips this model of the Portal with MIPS technology. MIPS works to reduce potential rotational forces by lining the inside of the helmet with a breakaway layer that allows rotations to be absorbed by the outside of the helmet, reducing the forces that your body has to take on.

    • A light and tech-packed helmet for everyday rides
    • Polycarbonate shell with EPS liner absorbs impacts
    • MIPS technology works to dissipate rotational forces
    • Dial in perfect fit with VaporFit adjustment system
    • Stay cool on triple-digit days with 18 optimized vents
    • Let your lenses shed fog with AirEvac ventilation
    • XT2 performance lining fights odor and wicks sweat
    • Item #SMI00I1

    Tech Specs

    ⚠️ WARNING
    This product can expose you to chemicals including Bisphenol A (BPA), which is known to the State of California to cause birth defects or other reproductive harm. For more information go to
    Shell Material
    Impact Foam
    18 vents
    Fit Adjustment
    CPSC, CE EN 1078
    Claimed Weight
    [medium] 300g
    Recommended Use
    commuting, cross-country, road cycling, trail
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Excellent Commuter Helmet

    • Familiarity: I've used it once or twice and have initial impressions

    This helmet is super light and has a cool, low-profile design. The MIPS technology is bonus. Very happy with my purchase.