Kask Protone Helmet

KASK’s most advanced helmet to date, the Protone was developed in collaboration with Team Sky. It has among the fastest heat dissipation and lowest drag co-efficient of any ventilated helmet available.

• Wind tunnel tested - the protone boasts the lowest drag co-efficient of any ventilated helmet available
• All about fit - Kask octofit adjustment system guarantees a perfect fit
• Lightweight comfort - weighs just 230G and uses 3D Dry padding and eco-leather Chinstrap
• Safety first - all Kask helmets are Certified, which means they meet and exceed all US safety standards for bicycle helmets