I've used it, and I think it's in good condition. This is a top lid for expanding the capacity of the Granite Pack and Kitalpa Pack (old models). It can also be used as a waist bag. When used as a waist bag, you can store any unnecessary straps. Specifications: Material: 210-denier Ballistic® nylon ripstop [urethane coating] Weight: 170g Capacity: 4L (Height 9 x Width 35 x Depth 26cm) Compatible Models: Granite Pack 30/40, Old Kitalpa Pack 30/35/45 (#1133238, #1133258, #1133240), Old Kitalpa Pack Women's 30/35/40 (#1133239, #1133259, #1133241) Features: Adjustable top lid, hidden pocket, delta lid