2-in-1 backpack with thermal bag that can be used together or separately.Backpack in 900D recycled polyester with pocket and bottom in high-density 600D recycled polyester with a water-resistant finish. The backpack is fully padded and has a 210D recycled polyester lined interior. It has 2 main compartments: a padded back compartment for a laptop up to 17.3" and a spacious front compartment with a removable divider that allows you to store your cooler bag at the bottom (included). Front zippered pocket with reflective detail. Side pocket ideal for carrying your bottle and back with extra padding and trolley strap. Capacity up to 20 L.900D recycled polyester padded cooler bag with PEVA insulation. Capacity 4.5 L