I have a pair of Northwave Extreme shoes size US 8.5 and Eur 41.
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These have a full carbon sole and two boas. I've always needed to continually click the release to get the shoes off. I don't know if this is by design but it's been like that for as long as I've owned the shoes.
I have used these shoes for a season and a half, the toe box for me is just a bit to wide and had to go to a narrower shoe. Just looking for a good home for these.