Sorry I wasn't clear in the posting. This is the 2020 version where it was one size fits most (2021 version has med/large sizing). I'm 6 ft, 190 lbs for reference and it fit me perfect. Main differences I see comparing the 2021 model is my pack has the aluminum frame and doesn't have the detachable spotting scope pocket (it's permanently attached). The new pack with the their upgrades is selling new for $380 which is why I'm selling mine at a greatly reduced price in comparison. Good pack but decided I wanted something a little bigger after using it on one hunt since I don't have my gear dialed in yet.Do you know if the waist belt is a medium or large?