Dan Be wrote an answer about Tecnica Crush Ski Boot - Women's on September 27, 2014
Hey Dana b,
The Mondo size for a Women's 5.5 in these boots is a 22.5. For some reason the sizing chart offered on Tecnica's site does not show the correct BSL. Feel free to contact us via chat or by calling 800-409-4502 during the week when we have people in the warehouse. We could then have them measure the BSL of the 22.5.