Hikingworld 40L Multifunctional Outdoor Backpack,school Backpack,strike Pack,tactical Combat Rucksack Backpack Bag,also for Travelling/hiking/camping/cycling. Capacity: 55L; Dimensions: 43x33x23cm (16.9"x13.0"x9.1") Material: 600D encryption Oxford fabric, Lining: 420D nylon,High pressure nylon Straps. Various MOLLE attachment points; Loops and D-rings on shoulder straps. Super strong and durable vent system,keep you cool and comfortable Secures to your back with an adjustable chest belt clasp; Soft and comfortable EVA-lining reduces pressure on back