These large backpacks from the Kind Bag Co are made sustainably and ethically from recycled plastic bottles. Each bag is made from 21 recycled bottles making this bag kind to the planet. The fabric is ideal as a backpack as it is water resistant. The contemporary design of these bags includes many useful design features including an inside zip pocket, a anti theft side zip pocket and two handy front zip pockets, padded back and shoulder straps, side pocket that fits most water bottles, a zip top closing with extra strong magnetic folding top. Large interior with padded compartment to fit most 16" laptops and two small additional pockets. Internal hook to attach keys or purse. The lining is also 100% recycled as well and the zips and labelling. Size 38cm (+17cm roll top) x 30cm x 14cm Capacity of 19.7 litres, 23 litres with roll top Cabin Bag Approved Machine-washed at 30°C at a delicate setting