You can easily increase the volume of the backpack with sturdy zippers along the sides. Plus, you’ll keep your food at just the right temperature thanks to the thermal insulation. With an easy-to-open velcro closure and fully waterproof casing, it’s ideal for every order. For added safety on the roads, the bag offers high visibility in low light, with reflective panelling and piping. External dimensions (expanded): 47.5 x 46 x 49.5cm Internal dimensions (expanded): 45 x 43 x 45cm Expandable part: 24cm (external depth) Un-expandable part: 25.5cm (external depth)