Doestyle ACU Camouflage Tactical Backpacks Outdoor Gear Assault Pack Camping Hiking Trekking Bags Heavy-Duty Water resistant Nylon pack cloth construction and heavy-duty oversized zippers for extra durability Size Approx.:25cm x 25cm x 44cm (10inch x 10inch x 18inch(1-2CM/ 0.4-0.7inch deviation), Capacity: 30L, Adjustable carrying system makes it possible for users to adjust the backpack to optimal position and reduce fatigue owing to heavy load effectively. Chest belts can adjust distance between the two shoulder straps and strengthen the stability of the backpack.Adjustable & removable chest belt and hip belt.The waist belts which can disperse the load to the lumbar area more effectively. It makes the backpack more comfortable. Breathable mesh backing for comfort.It is propitious to breathe. Enhanced back support for ventilation and comfort This is the small sizePlease pay attention to the size of the purchase,we show the size in ACU,GREEN If the product have any question, please feel free to contact us, we will try our best to solve for you. Best choice, please visit our Special Offers and Product Promotions. Find your best combination.