The Atrack backpack opens in the middle of the back panel - it is completely waterproof and can be carried as a backpack or bag. The tidy look of the new Metrosphere version also works well in urban use, with no extra straps or attachment points. - Waterproof material - Waterproof Tizip zipper with holes for small lock in the slides (lock not included) - IP67 protection class: dustproof, resistant to splash water from all directions - Four inside pockets - Compression strap inside - Outdoor mesh pocket - The material is strong and waterproof PS33 fabric - Maximum load 10 kg - The product does not contain PFCs - Made in Germany - 5 year warranty