4200 ci, includes aluminum stay, put your own pad in the pad pocket for frame with or without the aluminum stay, inside zippered pocket, large mesh front pocket, large side mesh pocket for shelter and water bottle, upper and lower mesh pockets on other side, included two hip belt pockets. Showing some wear but in good condition, lots of miles left on it. I did sew the shoulder straps in place but a few minutes with a seam ripper would make it adjustable again. I am 6′-0″. $50 conus F & F Paypal or add the 3 percent. PM me for pictures. Thanks!