Features of the Hydro Flask Insulated Tote 35L Lightweight Insulation keeps contents cold up to 4 hours Convenient sizes perfect for weekday lunch breaks and weekend outings A fully lined interior with welded seams means simple wipe downs Collapsible design easily folds into a smaller form for storage and travel Soft exterior and handles form to the body Coated fabric is waterproof and durable; pockets Are welded; zippers Are water resistant Modern design paired with rugged durability