As most winter sport enthusiasts agree, if feet are miserable, everything is miserable. Defeat the possibility of misery with the Lill Sport Boot Cover. This Boot Cover is a windproof, 3-layer textile cover. Reinforcements on the sides protect against hard ski track edges and the sole consists of rubber coated fiberglass fabric for better durability. Boot Cover fits both Salomon and Rottefella bindings (NNN/SNS/PROLINK). If in between sizes, we recommend sizing up.