Yes, they will provide you shoes and boots when you get there on R-day. They are not sitting there with your name on them as far as I know. The sizes provided on the grey cards are to let the academy know about how many of each size they MAY need on hand. When you go to USMA in March go to the PX with the 'boot letter" (this is the letter that appointed applicants get to allow them to purchase boots and shoes in the Post Exchange - there will be plenty of posts on this later on!!). Buy them then when you can relax and take your time on fit. Then wear them both to break them in. When I say them, I mean your feet. Most likely (not a guarantee), these will be the boots and shoes you will wear during beast. During R -day, there isn't any time to try a pair of boots, see how they fit, try on another pair, etc... The stress level is pretty high and you will be moving very quickly just to get out of there.