Heeeelpp!

^^ Wear it however it is most comfortable. But if your arm is getting sweaty, I wouldn't wear it that way. I'm kinda thinking those marks on your handles are oils from your skin and lotion.
 
Honestly, I don't think it even look bad. In my opinion it is dirt or oil from your skin. You can still get oil and dirt off your arm. It realy doesn't matter how you carry it. If you used a baby wipe the spots would probably come off.
 
Honestly, I don't think it even look bad. In my opinion it is dirt or oil from your skin. You can still get oil and dirt off your arm. It realy doesn't matter how you carry it. If you used a baby wipe the spots would probably come off.

I tried a baby wipe on both bags, but it didnt take it off, it made the handles darker though.