I really took the risk of buying this style of shoe online and chose the size carefully (13 D (M ) US ) for my size 12+ feet and as it turned out...they fit comfortably, to my delight! Then I was amazed at how long I can wear them, even walk a lot and still feel comfortable! Tip: trim your nails before wearing these... luckily your feet :o) Very sexy shoes! It's great that men always show off something sensual for a change and women don't! Thank you Giorgio Brutini!