This ski boot has a beautiful fit out of the box. Used the Fischer boot scan on the website. Exact size recommended. The 4 clip system is so easy to use with minimum tightness required to clise the boot. Beautifully made. Lots of options to adjust foreard lean if needed. Liner is so comfortable and very secure in the heel and ankle area. The overall shell is robust and excellent for a expert pro skier looking for excellent power transfer. Thank you Fischer!