Well balanced internal frame backpack, top load design with separate sleeping bag compartment. Mesh front and side pockets for quick access. Top hood compartment. Dual front and side compression straps. Top and bottom lash down patches. Padded back panel, mesh covered lumbar pad. Curved hip belt with hip-load control straps. Fully taped seams with reinforced stitching, 600 denier fabric main body, 1000 denier fabric bottom. Nice size for multiday hikes, domestic, and international travel where you don't want to carry 100+ liters of volume / weight. 3.34 lbs Great condition!