Large Capacity: The military backpack in black size: 30 x 30 x 50 cm (L x W x H), capacity: 45L. The large waterproof backpack Compatible with men can be used as a camping backpack, hiking backpack, fishing backpack, travel backpack, school backpack, work backpack, and emergency backpack, etc. This military tactical backpack is suitable Compatible with both men and women. Multifunctional: The army backpack includes 3 main compartments, 18 inner pockets, and multiple compartments, mesh pockets with zippers, and a large anti-theft pocket on the back. On the side of the large black backpack Compatible with men, there are two pockets Compatible with storing water bottles or umbrellas. This assault backpack can hold a 17-inch laptop, books, clothes, etc. And the straps at the bottom can be used Compatible with holding a tent or sleeping bag. And sticker padding Compatible with adding your favorite patches. Comfortable and Breathable: Ventilated shoulder straps and back, thick mesh paddings, an adjustable waist belt, and a high chest strap can reduce the pressure of this outdoor survival backpack, making your backpack safe and comfortable. This tactical military backpack is not easy to fall off when cycling. Durable and Strong: The waterproof outdoor backpack is made of durable 900D polyester fabric, lon, and PVC. The military backpack with double-stitched heavy-duty zippers and practical drawstrings can meet all your needs in daily life and outdoor activities. It can be given as a nice gift to family and friends.