I bought the Granite Gear Crown X60 Massdrop special in their regular size (18"-21" torso) and its slightly too big for my 18" torso. The pack has never been used other than for trying on. Unfortunately Massdrop does not allow returns, so I wanted to post it here to see if anyone is interested! Images available upon request, more info on the pack can be found here: https://www.massdrop.com/buy/massdrop-x-granite-gear-crown-x60#overview