These socks are great.  It's funny, you never think you're going to obsess over socks until every pair your baby owns falls off all the time.  I finally figured out that my baby has big feet and that the age-appropriate size didn't fit at all.  These socks stay on his feet and the rubber writing on the bottom means that he can "jump" and "walk" (he's 9 months and doesn't do either on his own) without sliding all over the place.