he Nylon Soft Cooler line is the most versatile and the most popular series in the Polar Bear collection. Featuring a lightweight 1000-Denier Cordura Nylon outer-shell, YKK #10 Zippers, high-density foam, and a patent-pending sew design, the Polar Bear Nylon Coolers are built to last! Our combination of innovative design and superior craftsmanship makes the Nylon Series perfect for everyday use. When packed correctly, you can expect the Polar Bear Nylon Soft Cooler to hold ice for up to 24 hours in 100 degree heat. Whether you are at the game, on the boat, in the woods or on the course, the Polar Bear Nylon Cooler is the perfect companion.