The Red Waterproof 15 Litre Cool Bag Backpack in Grey makes outdoor activities more convenient and comfortable. Its waterproof, airtight, and leakproof design ensures that hot or cold foods stay fresh in any weather or location. This backpack has enough space to fit standard mid-size Tupperware without having to stack them sideways. Made from recycled plastic bottles, the 15L cool bag is lightweight and environmentally friendly.