its a starter boot for park. Thats about all I know about them..
But do not.. and I cant make myself more clear, do NOT buy them unless you know for a FACT that they fit you correctly.
Go to a store where they have people that know how to fit ski boots. take their advice on what size you need, and what boots would fit you... and go from there.
dont buy them just because they are a good price... you'd just be asking for potential death to feet.
being a bootfitter myself.. i cannot excersize how serious i am.