Still love the One 2.5, but this year's models (that is, Black, Blue, and Raspberry colors) are all smaller than last year's. Pinched my smaller toes, for some reason. Had to go up half a size to get the same fit. I wore size 9 in all previous years' styles. After buying & being stuck with the black & blue ones in size 9 (held onto them too long, as though they were going to get bigger!), I learned the hard way to order 9.5.