Eberlestock Just One Pack If you're going to own just one hunting pack, own a Just One Extremely versatile, with the hallmark patented features that make Eberlestock packs unique Starting at an ultra-compact 2300 cubic inches, it expands to 4600 with its built-in Cam Expansion system Compressed pack volume : 1,900 c.i.; expanded pack volume: 4,200 c.i.; scabbard volume: 400 c.i.; total volume: 4,600 c.i. Dimensions (compressed): 25"h x 11"w x 6"d; scabbard dimensions: 34"L x 7"W x 3"D, with a 20" circumference opening