The winter boot for road riders who don’t let the weather dictate their training. Made with the waterproof and windproof Koala Gore-Tex® membrane, the Celsius R Arctic GTX is designed to keep the feet warm and perfectly insulated even on the coldest days.Key Features:NRG Air carbon reinforced sole (8 stiffness index),Reinforced toe area with anti-abrasion technology.,SLW2 closure system.,Easyfit Climaflex collar with Gore-Tex Rattler® membrane.,Arctic 4layer insole.,360 ° visibility..