My Clavicle got broken in April 2016, bought pack in June 2017. I had to try, the pack on a few times as my shoulder and neck bothered me. The sales people at Robinson's Outdoor store in Victoria, BC are awesome. Hiked to Della falls in sept 2017 with it and from all my other issues that i had going on (concussion) the pack was comfy and it was perfect. My clavicle only gave me problems when i was hiking out with 1km to go. which was more from the cable car then anything else.