Fox Outdoor 10-89 11 W GI Extreme Cold Weather White Bunny Boots With Valve44; Size 1144; Wide For use in Extreme Cold Weather down to -65F Air Pressure Release Valve for High Altitude Climbs or Flight 100% Waterproof Rubber w/ Inner Layer of Wool & Felt Heavily Insulated; Each Boot Weighs 4bs Military Surplus at a Great Price! Size: 10N