Material: 900D nylon, water resistant coated nylon lining. Dimensions: 2.9" (OD) x 6.7" (H) / 7.5 x 17cm Weight: 0.22 lbs. Capacity: Adjustable shoulder strap, can hold 1000ml bottled water Connected with MOLLE system, loads on big bags can be easily used, making your bag more personal and convenient, and can also be hung at the waistband High strength, durable snaps, usable with other PALS harnesses with the MOLLE system