My wife has been getting sharp pains on her left collarbone and the muscle right below it from her backpack shoulder strap. She's on her second backpack now, an Osprey Aura 65 S, and we've tried all sorts of modifications to how she wears it (tightening and loosening various straps). No matter what we do, after about an hour of hiking she starts to get these sharp pains. Does anyone have any experience or advice? We're headed out for the Rae Lakes loop in a week and it would be nice if she wasn't in pain half the time!
Thanks!




