* DRYHIDE™ SHELL
* The Hopper’s high-density fabric is waterproof and resistant to mildew, punctures, and UV rays. The liner is made from an FDA-approved food-grade material.
* COLDCELL™ INSULATION
* Closed-cell rubber foam offers far superior cold-holding to ordinary soft coolers.
* HYDROLOK™ ZIPPER
* The toughest, highest-performing waterproof and leakproof cooler zipper in the world.