NWT Yeti Hopper Cooler Bag From their site: DESIGN & TECHNOLOGY: MagShield Access - Powerful magnets create an ultra-leak-resistant shield that stays open when you need it and seals closed with a gentle push ColdCell™ Insulation - Closed-cell foam offers impressive cold-holding capabilities, helping keep your frosty goods ice cold Leakproof Liner – RF welding used to eliminate stitching and provide leakproof seams in the interior liner DryHide™ Shell - High-density fabric withstands punctures and UV rays. To help extend the life of the cooler, both the interior and exterior materials are treated to be mildew resistant HitchPoint™ Grid - Securely attach your Side Kick Dry® Gear Case or load it up with zingers, nippers, bottle openers, and multitools Kangaroo Pocket – Phone, keys, wallet, or a little bit of hot sauce. Easily access all of your must haves Double-stitched Carry – Every pick-up point is reinforced so you can handle more weight than you’d prefer to carry Capacity: 32 cans (only) or 15.5 lbs. of ice (only)