All three of our guide boats are outfitted with these coolers. When gearing the boats up in the morning, we toss these around like the Samsonite "gorilla" tossing around luggage --these babies are tough. Features include: heavy-duty, waterproof/leakproof PVC lining material and multi-layered insulation for efficient ice storage; laminated, see-through mesh zippered lid pocket; vehicle/boat webbing lash loops and D-rings.