Use the chest clip on your backpack.

If you’re wearing a backpack (hiking, school, luggage, anything), use the chest clip. It helps the bag ride higher up on your back, reducing pull on your shoulders. <br><br>It’s so simple, but makes such a big difference. No digging into the crease of your arms. No extra weight on your shoulders. And with the clip keeping the straps together, the bag can never slide down off one shoulder and swing wildly while you try to make your way up a mountain.