Red Paddle Co says about the Coolbag Backpack 15 L
Easy-carry convenience with no compromise. The grey cool bag backpack from Red Original makes doing what you love easier, lighter, and more enjoyable. Completely watertight, airtight and leakproof, means cold or hot foods will last longer no matter the weather or location. The internal size of the bag also provides space to fit standard mid-size Tupperware so there is no need to stack them sideways. The generous 15L cool bag is made from eco-conscious recycled plastic bottles, keeping the overall design lightweight and waterproof.