Smurfs sneakers tagged size 3. We loved these but the tread/sole of these cute shoes have completely hardened and are super slippery. These are super slick so they are NOT good for babies that are starting to walk and my daughter looked like she was skating on ice when trying to stand... All that being said, I couldn't throw them out despite their issue because we were still able to get some use out of this since she hadn't been walking yet (11M).. When she started walking she still had room to grow into these but we unfortunately had the shelf them earlier than we would have because of the safety risk they posed. If you have an early walker it will definitely be an issue.
Measurements are
5.25 inches bottom of sole from toe to heel