BEST SOFT COOLER
The ROCKBROS leakproof backpack cooler adopts high-density insulative foam, which can prevent cold air from leakage and stop the UV ray. With this material, the backpack cooler can keep food and drinks cold or warm for up to 68hrs. Therefore, you can enjoy fresh food and cold drinks anywhere you are.The ROCKBROS coolers are designed with airtight zippers to prevent loss of cool air or liquid and effectively minimize water leakage. Keep the cooler bag upright for best performance.