From LaCrosse, the Women's Alpha Agility Waterproof Cold Weather Hunting Boots feature: Upper built with hand-laid premium, natural rubber with over 5mm insulating neoprene for durability, flexibility and complete waterproof protection Designed for hunting and very cold weather 1200G Thinsulate Ultra insulation Quick drying and moisture wicking comfort jersey knit liner will keep your feet dry and comfortable Signature adjustable gusset fits any size calf snugly and securely Comfortable, secure fit to keep your foot in place while on the move, boots with Active Fit also go on and come off with ease Kick-Off Heel Plate for easy hands-free removal EVA footbed Nylon shank Durable rubber outsole of the Alpha Agility is paired with a midsole constructed from our lightweight LXA compound for optimal rebound and comfort Approx. 15" boot shaft height Imported.