I was disapointed as I bought these for my newborn son, hoping they'd fit him soon. The sizing said "one size fits most." I guess "Most" dosen't include pretty much the first year of a baby's life? They were huge! I don't think they'll fit until he's 9 months or so, and he's a big baby. I thought these were for babies. It should be more clear. I have 2 pairs I bought locally that fit him great. What really sucks, too- is by the time they fit him, it'll be summer, and I likely won't need to put them on him. Sigh.