This is 2023 model-ultra 200 fabric (28oz).  Shortly after purchasing I removed the tubular aluminum stay, and have never been able to properly re-install it (it lacks about 1in from being able to fold over the velcro closure).  I used it over 2 backpacking seasons, this issue doesn’t impact its load carrying or performance-it’s just annoying.  Finally decided to replace it with this years model.  Offering for discount price of $100–still works great and in otherwise like new condition.  Free shipping via F&F to continental US.  Pictures available on request.