Yeti Hopper M20 Backpack CoolerThe Yeti Hopper M20 Backpack Cooler is an excellent way to put the day on your back. Offering a hands free cooler with comfortable straps and ultra strong magnets to keep the cold locked in. MagShield access opens wide to easily load your drinks, ice , and food while providing a leak resistant seal. Using a 2:1 ice to can ratio you can fit up to 18 regular sized cans in the Hopper M20. ColdCell insulation utilizes closed-cell foam technology to lock the cold in and keep your goods fresh. Yeti's DryHide shell is made from high density fabric to hold up to UV rays while boasting puncture and mildew resistant. The Hopper M20 goes where other coolers can't.Specifications: Exterior Dimensions: 18.1" H x 9.9" D x 15.3" W; Interior Dimensions: 14" H x 8.9" D x 11.6" W; Empty Weight: 4.8 lbs; Yeti Hopper M20 FeaturesMagShield AccessTo create a leak resistant shield that stays open when you need it and closed when not in use, Yeti uses powerful magnetsDryhide ShellTo withstand UV ray damage, mildew resistance, and fabric punctures this cooler is wrapped in a protective shell for a long working lifeHitchpoint GripSecurely load up your cooler with all your favorite tools from zingers, to bottle openers and even multitools.Coldcell InsulationConstructed using closed cell-foam technology, this cooler keeps your goods icy coldLeakproof LinerTo eliminate stitching and provide leakproof seams, Yeti utilizes RF welding in the interior linerDouble Stitch CarryReinforced stitching at every pick-up point can handle more weight than you'd want to carryHands-Free HaulingThe slim tapered design combined with ergonomic straps evenly distribute the coolers weight for an easy hike.Cooler Maintenance To keep your Yeti Hopper M20 in tip top shape simply follow these steps after your outing. Rinse with soap and water; Thoroughly dry the inside with cloth or paper towel; Make sure your wipe down the MagShield; Access opening to remove any dust or grime; A sponge or non-abrasive rag will help with tougher stains or marks; Dry your Hopper by leaving it open and flip it upside down; Best to do this outside or over a towel;