My daughter, 15, thinks these footies are "great".

In her words:

PROS:  Can't see them when wearing flats. Wash well in warm water & dry well medium heat. Haven't shrunk.

CONS:  Too big in the heel -- they keep slipping down under the bottom of my foot. I hope I grow some more since they didn't shrink when I washed and dried them. I guess my size 7 foot is too small for the "small/medium" sock.

Mom's Comment: I checked the size guide on the web-site before ordering these for my daughter, but there was no reference to sock sizes in the guide. What good is having a size guide that does not have any information to help you choose the correct size? I hope Amazon and/or manufacturer corrects this oversight.