I purchased this item from this site, but I won't be using it, so I'm selling it. Product number: 1108774 Size: Men's L Montbell Windstopper Down Foot Warmer Normally, the size indication should be near the Windstopper tag, but it's missing. I usually wear 27.5cm shoes, and even when I tried them on, there was no difference in fit between the left and right, but I'm listing it as junk just in case. Since then, it's been in good condition with no signs of use or scuffing, but please refrain from purchasing if you are concerned, to avoid any problems.