... STORAGE OR HEAT PRESERVATION FOR 72HOURS. WATERPROOF GRADE IPX7. GOOD FOR OUTDOOR ACTIVITIES LIKE HIKING, HUNTING, FISHING,CAMPING,PICNIC ETC ... LIKE: WATERPROOF COOLER BAGS, WATERPROOF HIKING BAGS, WATERPROOF HUNTING BAGS, WATERPROOF CAMPING BAGS, WATERPOOF BOATING BAGS, WATERPOOF ... (10MINS.). WELCOME YOU COME AND VISIT OUR FACTORY FOR DEEP&FURTHER DISCUSSING! FURTHER DISCUSSING, PLS KINDLY HELP ...