Osprey Variant 37 Backpack Capacity: [S] 34L [M] 37L [L] 40L Weight: [S] 3lbs 4oz [M] 3lbs 6oz [L] 3lbs 9oz Suspension: Removable 6mm aluminum frame, 1.5mm HDPE framesheet Custom Fit Options: Removable hipbelt Dimensions: 34.5 x 13.5 x 12.5