The Hopper BackFlip 24 by YetiOutside: 13 3 4 19 1 8 8 1 2 Inside: 12 5 8 6 1 2 15 Empty weight: 5. 3 lbs Holds 20 cans of beer with a 2: 1 ice ratio DryhideShell Coldcell Insulation Hydrolok zipper Wide mouth opening Hitchpoint grid attachment Benefits Dryhide shell is made from high density waterproof, puncture resistant, mildew resistant and UV resistant Interior liner is made from FDA approved food grade material Coldcell insulation is made from closed cell rubber foam that