Guerrilla Packs Watchman Internal Framed Backpack, 35-Liter, Black Compact internal frame backpack with padded and ventilated comfort backing with 2,135 cubic inch capacity or 35 liters Multiple entry points: Top, bottom, and front Loading Adjustable shoulder straps with reinforced padding, sternum straps, and lumbar pad Features: compression straps, accessory mounts, stretch pockets on shoulder straps, main reinforced top grip handle, and hydration compatible Torso fit range: 14.5-Inch to 19-Inch