Hopper Flip There are some adventures where we just want to grab our stuff and go. That’s where the Hopper comes in. It’s the first 100% leakproof portable cooler. We’ve engineered it the way we do everything — to keep ice for days and be tough as nails. So don’t call it a soft cooler — it’s anything but. The Hopper is loaded with features you won’t find on any other cooler and built to go the extra mile whether that’s down a wild river in a kayak or on a floatplane trip to a remote salmon stream. DryHide Shell: the Flip's high-density fabric is waterproof and resistant to punctures and abrasions. ColdCell Insulation: closed-cell foam offers far superior cold-holding to ordinary soft coolers. HydroLok Zipper: borrowed from survival suits and hazmat protective gear to make the ultimate waterproof airtight closure. Tie-Down Points: D-ring tie-down points give you multiple ways to secure the Hopper. HitchPoint