Well, i had went to my local ski store and the guy fitted me as a 28 but i really wanted these boots so he said that the 27 and the 2.5 shell was the same size, just different padding. And whith those being the last pair, i bought them thinking that i would be able to pack them out. Well i took them up to a small mountain to try and ride them, i couldnt. I wore them all of an 1/2 hour but they were hurting so much that i had to take them off and go rent. Thats why i said only used for a 1/2 an hour and selling them for so cheap. Trust me i wish i did not have to get rid of these, but i need more like a 29.0, i went to a different shop (buckmans) and they fitted me as a 29 so i get the short of the stick and you get a great deal.