A Personal Cooler For Solo Trips And Treks. Sling It Over Your Shoulder And Head Out. One of the joys of a day trip is traveling light. The Hopper Flip® Soft Cooler in this smaller format is perfect for keeping your food and drinks cold while out in the field. The Hopper Flip® 8 has the insulation power only a YETI® Cooler can offer and is engineered to be tough - because flying solo doesn't mean you won't get a little dirty. The Hopper Flip® 8 Soft Cooler is your new day trip MVP.