Features: 1. Long Time Preservation: About 2-3 hours. Refrigerate to keep food or drink fresh for about 3-4 hours (up to 6 hours with the ice pack).2. Fits Your Size: The external size of this lunch bag is 25*23*16 cm/9.8*6.2*9 inches with a large capacity it can completely hold your lunch box snacks or even your protein shake bottle.3. Easy to Carry: It comes with adjustable/removable shoulder straps shoulder strap length: 66-120 cm/26-47.24 inches which is both beautiful and sturdy enough to support whatever you have in your bag.4. High Quality Material: Durable oxford cloth is perfect for wrapping your food and lunch boxes. We've upgraded the interior insulation liner to suit your needs. It can keep your food cold or hot for about 2-3 hours.5. Thermal Bag Construction: 1 main double zipper compartment 2 front button pockets 1 back mesh pocket 1 long detachable and adjustable shoulder strap padded carry handle shoulder strap.