Sportsman's Warehouse Ice Shelter Floor Mats Ice Fishing Shelter Accessory - Keep warm and safe with these high quality floor mats. High-density EVA foam provides excellent support and cushion; Contains NO toxic phthalates. Excellent alternative to rubber floor mats. Keep your feet dry plus retain more heat in your shelter so you can use less propane with your heater. Easy to install and remove Keeps feet dry and better retains heat