The zipper running through the back panel of this Atrack pack allows both security and ease of use: it opens the pack from top to bottom for easy packing and unpacking, while keeping that zipper tucked against your back. - ST model: the back panel adjustment reaches from size XS to M, making it great for shorter users - Waterproof: fully waterproof material and waterproof TiZip zipper - IP67 protection: dustproof, can withstand a 30 minute submersion in 1 meter deep water - Four compression straps - Main material: PS33, a durable polyurethane coated nylon fabric, PVC-free, FOA-free, BPA-free - Padded hip belt with zippered side pockets - Two mesh pockets on the outside - Front panel with latch points for extra gear - Four zippered pockets inside - Waterproof port for hydration hose (waterproof before, during and after use of hose) - Max. payload: 10 kg - Made in Germany - 5 year guarantee against defects in materials and manufacture