I bought the size X-Small for my daughter who is 4.5 years old. I compared them to my daughter's Costco 4T snow pants and they are much longer. I like that there are velcro straps at the waist that can be adjusted although they are a bit larger. We will use them for at least another year. They are absolutely well made, durable, comfortable and warm. My daughter is very happy with them.
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