I have XS for my daughter who is almost 3 years old. It's big for its age but fits well with most 4Ts. It's impossibly small. We have the Children's Place leggings in size 4T so I figured XS would fit. nope Too tight. As if the skin is stretched. Leave marks on my daughter when she wears them. We recently removed them to give away. Maybe you had 2 or 3 socks in 3 weeks before they were fully grown. The quality is good but it seems that clothes for toddlers and little girls are getting smaller and smaller.
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