100 % Leak Proof: The inner lining is made of waterproof high-frequency material PEVA, which is high-density and waterproof. Easy to clean. The exterior is made of high-density Oxford cloth, which is firm and wear-resistant, not easily broken. Collapsible and Portable: This portable cooler can be widely used when you go camping//Beach/hiking/Grocery Shopping/Kayaking/Road Trips. You can fold the leakproof ice chest effortlessly when not in use, which is space-saving. Long-term Cooling Time: The