KAV Portola Helmet - Alto Velo

  • A physical fit kit to gift during the holidays
  • A gift certificate valid for any bike helmet
  • Plenty of space for a personalized note
  • A 1:1 fit session with our expert fit technicians
  • Your physical fit kit will be delivered to the address entered at checkout.
    Order by December 16th to get it in time for Christmas.
    30-Day Risk Free Trial
    100% Crash Replacement Program
    5 Year Warranty
    Unmatched Impact Resistance

    Hex Honeycomb Structure™

    3D printing enables us to create a crumple zone that can compress almost 3x more than traditional helmets. The hexes are optimized to sheer during oblique impacts.

    3D Printed &

    Made For You

    Every KAV helmet is made to order and begins with your seven unique measurements. Each helmet begins with a one-on-one fit session to take your exact measurements, and is 3D printed to order in Redwood City, California.

    The whole process from order to delivery of your custom helmet takes as little as two weeks + shipping.


    This Is Our Mission

    Whereas most companies outsource all their testing, we have our own test lab and utilize a network of 3rd party test labs to verify the results. Without the constraints of styrofoam, we use our KAV PolyCarbon Composite, Hex Honeycomb Structure, and fit pad system to holistically reduce linear and rotational impacts by 25% more than the U.S. CPSC safety standards.


    Why doesn't the KAV helmet have MIPS?

    Why Hex and why it matters.

    Is a 3D printed bike helmet safe?

    What if I want to wear a cap or cut my hair, will my custom fit cycling helmet still fit?

    What is the difference between the Portola and the Portola: Kaze?