The Turner roll-top backpack is made of 51% GRS certified recycled plastic and the lining is made of 100% GRS certified RPET. The backpack features a padded 15.6\" laptop compartment, a padded tablet compartment, an internal strap for securing a water bottle, and a zipped pocket for smaller items. The main compartment is designed with a roll-top closure, which can be securely fastened with a clasp. Additionally, a luggage strap on the back allows for easy attachment to rolling luggage, making it a convenient travel companion. Volume capacity: 12 litres.