Aerodynamic performance, low weight, maximum ventilation, premium style.

A traditional aerodynamic bike helmet can be too warm but the ventilation holes on a standard road cycling helmet can increase drag. The Kask Protone cycling helmet has a revolutionary design which combines the best of both worlds. Developed and extensively wind-tunnel tested together with Team Sky, the Protone helmet delivers professional performance in a sleek and stylish package.

The Protone weighs just 230g and uses a 3D Dry padding with a multi-layer open cell construction process to give a more comfortable ride. It has removable and washable inner padding, made from CoolMax® fabrics and its inner padding fabric has been treated using the Sanitized® antimicrobial process. Additionally, its Octo Fit adjustment system guarantees a perfect fit to any kind of head shape.

KASK has continued to use its Multi In-Moulding Technology to create a polycarbonate cover for the top, base ring and the back of the helmet’s shell. This is joined to the inner polystyrene cap via KASK’s In-Moulding Technology to improve the shell’s shock absorption. Its strengthened frame further reduces the risk of a shock breaking the shell.

3D Dry tri-dimensional padding
The special internal padding is based on an innovative multi-layer open cell construction process that gives maximum comfort and performance thanks to a series of technical features: - Several ventilation holes that reduce the head-to-pad contact surface by70% compared to standard designs - 5mm thick padding material that wicks moisture away from the head and moves it to the helmet’s outer shell – fast - Excellent three-way evaporation Aerator position at the top of the helmet boosts safety - The top area is reinforced with an internal plastic sub-structure that increases crash protection and helps maintain the helmet’s integrity after impact.

CoolMax® material padding
The front of the helmet features a highly effective sweat-absorber that is easily removable and washable.

Self-adjusting lateral divider
This provides great rider comfort with minimal adjustment required. After putting on the helmet and fastening the chinstrap, the divider moves to fit comfortably around the ear lobe. The ergonomic design means a great fit for all head shapes and sizes, guaranteeing freedom of movement and excellent ventilation.

Kask Octo-Fit
Rubberised Micro Dial adjuster provides improved finger grip. Floating cradle contact points combine internal gel pads for optimum comfort. These supports are designed to oscillate freely through 180° allowing a perfect fit on any shaped head. The Skeletal Brackets of the cradle have been designed and refined to provide the best fit and support whilst being as light as possible

Chin pad with eco-leather chinstrap
The anti-allergy, washable chinstrap is extremely comfortable and helps prevent skin irritation. It incorporates soft lateral spacers, shaped to enable excellent ventilation and avoid that unpleasant ‘sweaty strap’ feeling.