LaCrosse Men&#39;s 18" Alphaburly Sport AP HD 1500G Hunting Boot,Mossy Oak Treestand,13 M US,LaCrosse,18" Alphaburly Sport Insulated" /> 100% Neoprene Rubber sole Naturally Insulating 3.5MM Neoprene stretches for personalized fit and adjustable back gusset with Cam-Loc buckle accomodates varying calf sizes Rubber-clad Neoprene is ozone-resistant, scent-free and 100% waterproof 1500G Thinsulate Insulation for warmth Fleece lined for comfort and moisture management