Backpack, Padded Shoulder Straps, Rucksack Design for Maximum Storage, Black, Ergodyne Arsenal 5143 600D polyester durable material withstands wear and tear 1680D ballistic polyester base reinforces the bottom for ultimate durability Padded shoulder straps for increased comfort under heavy loads Rucksack design for maximum storage and easy accessibility Internal padded computer sleeve in main pouch protects your devices