Lightweight aluminum and nylon black backpack frame. Purchased around 2023. Used 5 or 6 times, but I think it can still be used. Please judge the detailed condition from the photos. The paint on the bottom, etc., has been touched up with a touch-up pen. Frame dimensions: Diameter 19mm Size: Height 750 x Width 370 x Depth 220mm (Cargo bed 180mm) Weight: 1,300g Material: Aluminum alloy (matte paint) Pad: Urethane foam Back length: 460mm Cargo bed: Fixed Color: Black Static load: 40kgf This type also has a waist pad, making it very easy and convenient to carry. Thank you for looking.