Model Number: 40l backpack rucksack Function: Waterproof Climbing Rucksack Backpacks Type: External Frame color : Green / Dark Blue / Black / Orange / Blue Function1: Water repellent and tear resistant Weight:: Approx. 600g / 1.32lb Function2: Waterproof backpack Size: 52 * 33 * 20cm / 20.5 * 13 * 7.9in Use 1: hiking backpacks Use 2: trekking backpack Use 3: outdoor backpacks man Use 4: backpack men hiking Use 5: men's military backpack Use 6: backpack nylon Use 7: camping backpack