Burton Backpack Prospect 21L freetime tie dye pr 2017 Burton Prospect is a stylish 21 liter backpack, ideal for school or work. The backpack is equipped with a padded 46 x 28 x 5 cm laptop pocket, fleece tablet pocket and two side beverage bottle pockets. - padded laptop pocket (46 × 28 × 5 cm) - fleece tablet pocket (29 × 19 cm) - outer zipped pockets - inner mesh pocket with key carabiner -