S1 Lifer Helmet Impact Reducing RAD Liner - Blue (Small (12mm))

S1 Helmets are stepping up impact reduction by adding an additional layer of protection to your helmet with their revolutionary new impact reducing sizing liner the RAD Liner. RAD Liners reduced impact energy an additional 7.5% to 16.5% averaging a 12% energy reduction to the head in all liners tested! Sizes can be mixed and matched to find the perfect fit Sweat absorbing terry cloth liners are hand-washable and sewn around the edges for greater durability Available in 5 Size options from XS to XL