DESC: Feel the difference! The Polar Bear Coolers - Rising Style utilizes Dura-Temp liner air trap technology. This allows our coolers extremely good resistance to low temperatures, elevated temperatures and exposure to chemicals. The Polar bear coolers have an R value of 8.75. Our product is high temperature flexible to 200 degrees Fahrenheit and crack resistant to minus 40 degrees Fahrenheit. The Polar Bear Cooler - Rising Style will not leak or sweat. The outer shell is comprised of 1000 denier cordura nylon. This is the good stuff. This superior performance nylon has outstanding wear durability, Exceptional resistance to abrasions, punctures and tears. The Polar Bear Cooler will not mold or mildew and is washable in soap and water. All attachments and exterior hardware are top quality. The Polar Bear coolers also feather a # 8 heavy duty weatherizes rubber-coated zipper for maximum resist ants to elements. Also includes a bottle opener zipper pull. T...