Originally Posted by
adlai
I picked one up recently to try it out. Terrible! Even compared to riding with my backpack on the messenger bag was worse. The weight distribution is lopsided, and yes, on a bike I still feel it, and even more so walking around. The waist strap doesn't prevent the thing from sliding around my shoulder, requiring me to constantly push it back. The bulk of it grinds against my lower back.
Would not recommend one, not at all.
You might be using it wrong. What works for me is to make the shoulder strap really long so the bag sits behind my lower back at hip level. Then I cinch the waist strap tightly around hip bones (not around the soft part of your middle). This keeps weight supported by hips and not shoulders. And it doesn't move around.
Many people say to wear it high -- I don't like it like that.