This pack is made of 210d Dyneema Xgrid. It has a 42" circumference and a total height of 31" making it 4400 cubic" for the pack body. The big top lid measures 13"x9"x4" adding another 400+ for a total of 4800+. Pack includes: P&G Bayonets, Bypass Harness straps, 2x Top lids with one also being a fanny pack, 2x water pockets, padded back pad, waist belts, center strap buckle closure...all removable. Pack has recently been washed and hung outside to dry with internal stays left in like recommended on McHale website.  I am selling this pack with "no returns" and "as-is."  This is due to the pack being a custom made pack, please measure one of your packs and compare to this one.  I am happy to provide more info or pictures.  Check my other auctions in the near future for more McHales and other great gear.  Thanks.