Product Instructions Zipper Maintenance: To ensure better cooling performance, we use a special airtight zipper which may be a little tight. Please apply zipper lubricant for better use.Ice To Food Ratio: Please reserve at least a 1:1 ice to food ratio, better 3:2 in the soft cooler, and stagger your ice to chilling everything.How to Clean Soft Cooler: Please clean with soapy water and dry thoroughly. Do not use any chemical cleaner. In particular, it may smell a little bit when first time received. This is normal and it will disappear after washing and standing for a period of time.Storage:Please wipe off dirt and place it in a cool well-ventilated place away from direct sunlight. Product Performance 4 layers high-quality material: 840D thickened oxford fabric, 25mm heavier insulated cotton, 420D oxford fabric, and TPU waterproof film High-Performance Soft Cooler Bag:Provide 68 hours of long-lasting cooling effect in the test environment, kept food and drinks cold and fresh.22L Large Capacity: You can put all you need in for your weekend camping, beach leisure, and picnicking.Leakproof & Waterproof: The special leakproof cooler zipper is better sealed and more waterproof than ordinary zippers.Convenient & Portable: Shoulder strap, side handles, grab handles, 3 easy ways to carry Backpack Cooler Backpack Cooler Soft Cooler Bag Add to Cart Add to Cart Add to Cart Customer Reviews 4.5 out of 5 stars 272 4.5 out of 5 stars 272 3.6 out of 5 stars 45 Price $129.99$129.99 $129.99$129.99 $69.99$69.99 Capacity 20L 20L 20L Color Grey Blue Black Waterproof ✓ ✓ ✓ Leakproof ✓ ✓ ✓ Use for Picnic/Beach/Camping/Hiking Picnic/Beach/Camping/Hiking Picnic/Beach/Camping/Hiking