Bought these for my daughter who had been walking for 2 months before we got our first snow of the season; she was 14 months when she started wearing them, and was 18 months the last time she put them on.  I'm so happy we got them for her, as we had an unexpectedly snowy winter (2010 in the Northeast).  She was able to walk in them perfectly well, and they kept her steady in the snow and ice.  They were easy to put on/take off, and her feet also stayed toasty warm in them, as the lining was perfectly fuzzy.  Highly recommend these, and I plan to buy the next size up for her next fall/winter.