100 Percent Altis Helmet - L/XL - Grey algolia-ignore Spring style: Replaceable air cartridge

Spring style: Replaceable air cartridge - air pressure/return speed is not adjustable

Ultra HD integrates with a shatterproof and impact-resistant polycarbonate material moulded specifically for zero optical distortion

The 23mm internal width means they are perfect for tyres between 1

Closure: A simple secure lace closure allows you to custom tube your pressure and an elasticised keeper on top of the tongue allows you to safely store your laces from harm's way

100 Percent Altis Helmet - L/XL - Grey algolia-ignore Spring style: Replaceable air cartridgeThe100% Altis is engineered for the demands of the modern day mountain biker. Lightweight, breathable with class leading performance and safety all with a modest budget in mind. Who's this item for: Enduro, Trail and All Mountain riders looking for a lightweight, breathable and comfortable half shell helmet to keep them safe when out riding. Construction: High Density EPS foam injection and moulded with polycarbonate. Rotational liner: Smartshock