These seem like they'd be great, but I bought the "right" size for my baby.  They're just a little big on her b/c the skid-proof bottom keeps the bottom very flat.  Her foot would have to be as wide as the bottom of the sock to not have the extra material.  That means there's enough real estate for my baby to grab and pull off in record time.  She doesn't even have to do a little kicking.  So she's only worn them once.  The socks from Robeez with the grippers on the bottom work just fine.  They also stay on when she kicks (and she kicks a LOT) so I'm happy with their quality.  These might have worked if I'd bought a size down from what she's actually wearing, but I'm not willing to spend another $13 or whatever they cost now to try out the theory.