Particularly adapt for training and sky running competitions and winter ultra trail thanks to the integrated gaiter that prevents mud and snow for entering. The grippy FriXion AT sole has a AT Grip dedicated area to increase and personalize holds on snow and ice.Protective, comfortable and breathable thanks to the Gore-Tex® lining. It can also be used in static conditions or with snow shoes. Comfort is guaranteed thanks to the "Easy-in"system that speeds up the shoe fitting operation. A must for winter training and competitions.