First Tactical Specialist 3-Day Backpack Main compartment 13" L x 22" H x 8.5" D/33 x 55.9cm w x 21.6cm D Approx. Capacity 3425 cubic inches/56 liters Weight 4.45 lbs/2.0 kg Pockets: 7 external, 3 internal 1000D water resistant Nylon