I wear a women's size US-10.  These shoes in EU - 41 run  a bit small and the shoes are too expensive to have my toes hanging over the end.  I ordered  US-11 which the order site indicates is EU - 42, but when the shoes came, there was a white label pasted over the 41 on the box and they were marked 11.  The shoes were definitely size 41, too short.  Some 41s fit me, but these run small.  Nice comfort, but the sizing is disappointing.