YETI. YHOPBF24. HOPPER BACKFLIP 24. CHARCOAL. Built taller and wider than its Hopper Flip counterparts Hopper BackFlip is designed to efficiently distribute the weight of your goods while the ergonomic shoulder straps make the journey more comfortable. Even more a removable chest strap and waist belt are included for added stability and security. And like the rest of the Hopper family it promises superior cold-holding a 100 percent leakproof zipper and a tough DryHide Shell. So go ahead and trek to your favorite faraway fishing destination because this backpack cooler won t slow you down.