KNOCK SURF HELMET—V.1, ONYX

$175.00
Color
Size
Knock helmets have a four-star rating from the Virginia Tech Helmet Lab, and are both EN 1385 and CE certified. They're engineered for real surfing conditions—water is precisely channeled through the helmet, away from your face. Constructed with EPP foam and lined with EVA and PU foams, they're built to withstand multiple impacts from fluid forces while keeping you comfortable.
ESTIMATED SHIPPING DATES

Pre-orders ship the first week of January, 2027.
TECHNOLOGY
  • Near weightless feel, weights less than 380 grams.
  • Multi-impact EPP foam absorbs repeated impacts without compressing out.
  • Flow-through hydrodynamics reduces drag, deceleration forces, and neck strain.
  • Controlled internal water channels keep water away from your face and eyes.
  • Locked-in fit system is anchored to the structure, not just the liner.
  • Liner is made with both EVA and PU foams that form to your head and don't absorb water.
  • Marine-ready construction throughout
TESTING & SAFETY CERTIFICATIONS
  • Developed with pro surfer Koa Smith, and tested in some of the world's heaviest surf.
  • Four-star rating from the Virginia Tech Helmet Lab, making the Knock helmet one of the safest helmets you can buy.
  • EN 1385 certified. The European safety standard developed specifically for helmets used in water sports, covering impact absorption, retention system strength, and field of vision.
  • CE certified. Our helmets are in compliance with EU health, safety, and environmental legislation.
WARRANTY
  • 2-year warranty against manufacturing defects from date of delivery.
  • If your helmet takes a significant impact within 3 years of purchase, contact us and we will replace it at 50% off.
  • Read the full warranty here.
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KOA SMITH, PROFESSIONAL SURFER

"I FEEL MORE CONFIDENT WEARING SOMETHING I CAN DEPEND ON."