Csfhtech CAIRBULL Bicycle Helmet Road MTB Bike Ultralight Riding Helmet One-piece Design Mountain Bike Riding Helmet

Highway Mountain Bike Riding Helmet Ultra-light integrated bicycle helmet

Designed from the competition, it brings excellent fit and attractive price/performance ratio. Similar to 4D features - such as the SUPER FIX harness system, 4D structural ventilation - allowing the model to cope with your hardest ride on the road.

size:

M code 54-58CM, inner width 17-17.5CM; L code 57-63CM, inner width 17.7-18CM

The 4th Dimension cooling system, with a large forward air outlet, enhances air flow and keeps the head cool.

Slim, soft and lightweight 4X DryLite mesh does not deform due to water or sweat

The easy-to-use Super Fit system offers 3 height adjustments with an elastic adjustment.

A unique lightweight strap system for improved wear safety.

High performance padding for improved comfort and perspiration performance.