TI-ARC Backpack - Measures approximately 30"L x 14"W x 7 1/2"H closed. Titanium alloy external frame with ergonomic lumbar support plate. Streamlined "Arc" 70 denier ripstop nylon bag. Ventilated, adjustable mesh shoulder harness. External pockets. Elastic compression straps. Hip belt pockets. Water bottle pockets. Ultralight. The Vargo Ti-Arc ultralight external frame backpack combines the best features of internal and external frames for an unparalleled support-to-weight ratio of any pack. Volume: 2,200 cubic inches (36L). Maximum load capacity: 35 lbs. Fits torso lengths: 20"-24". Minimum waist size: 30". Size: M-XL. Weighs: 4 lbs.