Speaking the same design language as Rainssignature Backpack, Rucksack features Rainssignature front TPU strap and carabiner buckle closure on a rectangular body. Constructed in Rainswaterproof PU, this bag has additional buttons at the top closure to better keep the bags contents dry. Rucksack also features a laptop compartment suitable for both a 13and 15laptop. 60% polyester, 40% polyurethane Water column pressure: 8000 mm H 41 x D 10 x 28 cm 11 LITERS One main compartment Snap buttons at opening Padded laptop sleeve inside for 15and 13laptop Adjustable front buckle closure TPU adjustable backstraps