Our team has developed a waterproof rucksack. It can be used for both everyday life and outdoor sports. This bag is made from a very robust material, and uses a heat-welding technique instead of the traditional sewing method to create a bag + zips that is 100% waterproof. The inside of the bag has a small pocket. There is also 1 pocket with a waterproof zip on the front of the bag. The bag can be worn on the back thanks to its shoulder straps, with a safety clip that attaches to the chest. The bag can also be carried by hand thanks to the handle on the top of the bag. The Bodycross logo is in glossy matt black. Advantages of TPU: 1) High durability. 2) High elasticity. 3) High intensity machine operation. 4) Environmentally friendly. Waterproof rating: IPX-3: Protected against water spray from above. Head-mounted spotlight, water sprayed from 0 to 60° to the side at 10 litres per minute at high pressure for at least 5 minutes. IPX-4: Protected against splashing or spraying water from any angle for any length of time. - Composition: 100% Polyester 500D PVC. - Capacity: 20 litres. - Dimension: 32*15*61cm.