One thing I didnt like about RBs is two newer pairs with the reflective look, reflect light from the back of me back into my eyes while driving my convertible. I wish that now that I know which size I need that I could buy a 3-pack of only the small size, rather than having to buy 2 pairs that I can’t use. I purchased this shoe in size 11 2ww US based upon the chart size ; the shoe fits perfect and is comfortable. Maybe lube your feet if you really want to wear these without socks?In conclusion, these are nice shoes designed to fit your feet like second skin. This is the best gift for my preteen! I was a little worried about the fit, as many other reviews claimed then to be smaller than expected, however they fit perfectly. As soon as she saw them, she wanted to put them on. it doesnt have the heel cup so I can step right into it. This is the perfect type of marinade to use for anything! Took a chance on the "renewed" version (fancy word for refurbished) .