Free Soldier Military Style Molle Large Tactical Combat Transport Backpack MOLLE compatible, hydration bladder compatible. Self-repairing YKK zippers with large glove-friendly pull tabs. Several compression straps, sleeping mat/bag straps, contoured shoulder straps, several D-ring attachments. Two large side pockets on each side. Material:Water-resistant 1000D polyester; Capacity: 50L; Dimensions: approx. 21"x13"x10" .