These fit like a narrow 10, official size 42, a little tight for me (usually a 10 in athletic shoes) but almost perfect. Shoes used only a few times, in almost-new condition. Comes with unused, but unboxed Peloton heart rate monitor with instructions and headphones with extra sizes. Reposhing this item I purchased from @katiehasmail. Loved it, but ready to rotate for something new. Questions? Leave a comment below!