NEOS Navigator 5 Overshoes are a favorite with mushers. They are lightweight, waterproof and have an aggressive tread. The built-in 5 Inch extendable gaiter is great in deep snow. Height: 15”; 20″ with gaiter Weight: 3.3 lbs 840 Woven polyester upper fabric Duraflex quick release closure Vibram Ninja Sole Comfort Rating: -20 degree F 100% Waterproof Snowshoe compatible heel Optional, removable EVA insole available and recommended. We recommend going up a size when wearing over larger sole shoes or boots.