If going outside to go cross country skiing is tempting but the thermometer is warning you that your feet could suffer, put these warm and toasty Alpina Overboot Touring extra insulation over your ski boots. Now you can laugh at the thermometer and have fun on a cold day on the snow. Put on an extra thick hat, too. Each overboot will fit up to two ski boot sizes, from the size noted and one size down Waterproof upper backed with insulation keeps feet extra warm Front zipper allows access to ski boot laces Reinforcement at the toe area for durability