my odd tan line is on my back, my shirts ride up when i ride on the hoods no matter how high i pull my shorts up, i have this dk brown half moon to rectangular shape on my lower back despite sunscreen (of course i am not as diligent on my back as i am elsewhere because it's not exposed when i apply). i have also come to the conclusion that if i didn't have so much invested in womens tops, i would buy mens, they come down over my back and stay there..but of course, men wouldn't be caught dead in pink, girly tops..sooo...