Zipper :  Type 3 Features :  It is made of heat insulated and waterproof material. It offers ease of carrying thanks to its adjustable straps. Back and strap pads are orthopedic. It does not cause irritation to the shoulders in case of carrying. It protects your food and drinks from heat for 5-6 hours without any ice pack. This period will be longer when using a thermal insulated thermos bag ice battery. Usage Area :  The heat-insulated bag protects your food and drink from the heat on the beaches, on daily vacations, traveling by car and camping. The product has been trial tested. Two ice bottles were placed in the bag at around 10 in the morning, and it was observed that only half of the ice in the bottle melted until 6-7 in the evening. When an ice battery is put in it, the cooling time will be up to 11-12 hours. stands out among them.