I ordered the SS with black sports band. So far, I love the band. I made an order for a white and a blue. I'm wondering if anyone out there with a white sports band if their bands have stubborn dirt or black marks on them that's difficult to clean? I clean my black sports band just about daily with soap and the watch case with rubbing alcohol. I exercise for hours a day and I don't like my wrist itchy. It's probably too soon, but I'm wondering if black marks sticks to it from normal daily wearing and bumps, or if over time, will it turn yellowish.