If you've never owned SiDi shoes, you must remember the phrase "you get what you pay forโ. This is a replacement for my last pair of 5+ years. Indoor and outdoor race training in all temperatures all year round in the mid-Atlantic. They fit the same as the previous pair, and note that they should be snug, from heel to toe the strap isn't boa, but it's called just as precise and will require you to get used to. This is a huge investment that I have made before and am happy for the second time.