The YETI Hopper M20 Backpack Soft Cooler is a soft cooler for easy travel through the wilderness. Don't let the soft sides fool you, the DryHide Shell is incredibly durable and designed to withstand punctures and UV rays. The ColdCell insulation keeps the ice, drinks, and food cold, and the MagShield access is easy to open. The pack straps make this cooler easy to haul from boat to beach picnic, into the woods where the waterfall lies, and more.