Slightly larger, more like pajamas than thermal underwear. My daughter said they are comfortable and would wear them as pajamas. My daughter is very petite, she is 13 years old, 4ft 10 3/4 and weighs about 80 pounds. We chose size 14/16. If you want thermal underwear, maybe go down a size. She said she liked them but she didn't go with Gaga like she did with the other set I gave her.
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