I am assuming these are better for newborns who don't move around a lot because they fall off my 13 month old son's foot. My friend recommended these but every time my son starts walking, they are just dangling around his ankle. They appear to be the right size too, 18 months so I have no idea why they aren't working except it seems like they should have made the ankle part tighter. My son is a big boy too so it's not like he's a small guy. My opinion is unless you have a newborn, save your money!