First Tactical Specialist 1-Day Backpack Main compartment 12" L x 18.5" H x 8" D/30.5cm L x 46.0cm H x 20.3cm D Approx. Capacity 2200 cubic inches/36 liters Weight 3.3 lbs/1.5 kg Pockets: 5 external, 3 internal 1000D water resistant Nylon