Tough 1 extreme vented sport boots new improved, form-fitting design! Improved design with an even closer contour fit. Lightweight, less bulk. Air-flow perforated neoprene to allow the leg to breathe, releasing heat. Three strong “quick grip” closures make these boots easy to put on correctly every time. Fits like a second skin to protect your equine athlete while keeping the dirt out. Supports legs while driving on hard ground and helps prevent interference marks. Easy to clean and fits most Draft Horses.