Hypalon TPU Insulated Cooler Backpack Leakproof Waterproof Cooler Bag, Arctic Wolf by Fieldcraft for Travel Sports, Beach, Outdoor Activities, Fishing, Hiking, Camping, and Hunting, –

Hypalon is a more durable, more extreme condition resistant material than cheaper TPU backpacks. Hypalon is the material of choice for use in Rigid-Hulled Inflatable Boats (RHIBs) commonly employed by the U.S. military and special operations forces as well as commercial and recreational boating industries. Known and trusted for its superior durability, puncture resistance and performance in extreme conditions. Afterall, it is good enough for them, it is good enough for us!