Columbia Sportswear Women's Nevis Toe Thong,Black,11 M. I wore my first pair right out of the box with absolutely no break-in issues. I have now purchased 2 more pairs in different colors. They are extremely comfortable and the fit is just right-a little tight at first but loosening a small amount with time. There is not much I can say that is negative about them except that they produce a weird tan-line on my feet!