Vibram Arctic Grip A.T. for Wet Ice Traction Coupled with XSTrek Evo Adding Durability and Improved Grip on Wet and Dry Surfaces Extended Rubber Coverage Gusset for Extended Fit (XF) whether Tucking in Bulky Pants or to Accommodate Wide Calves 100% Waterproof, 100% MUCKPROOF 8mm Neoprene Bootie for Comfort and Performance