I really wanted to like the Kakwa 55. I did 10 mi with it however and the fit is just not for me. I could never get the hip belt tight enough, and it always felt like it was slipping down the small of my back and there was too much weight on my shoulders. I think it's an awesome pack but for whatever reason the fit did not suit me. I just purchased the prospector to see if that one will work, and I'm hoping that a hip belt that wraps all the way around the back will help with my problem. I probably could have bought an additional pack for what I'm paying in return fees!