1. Same size as your usual shoes, in my country it is common to buy 1.5-2EU sizes or 1 USA size bigger. For these ones, thanks to the reviews, I bought them in the same size and fitted perfectly.2. They are incredibly lightweight, I can feel it. I showed them to guy who is experienced (62 years old, biking since 20's) and was awazed by their weight, although they are 13 in size.3. I like its design that allows them to dry quicker; however, you need to be aware that it is gonna freeze when there See full review