I don't know why it's so hard to find girls thermal shirts. You are perfect! My kid fits perfectly in size 4/5 so I increased the size to 6/6 so she can wear them all winter. Even as they get bigger, they fit snugly, but not as tight, and a quick little hand crease decides the length of the sleeve without being uncomfortable. The sleeves have a thumb hole which was a pleasant surprise. They are soft and wash well without shrinking or fading (gentle cold water cycle, low temperature). I also bought a size 4/5 set but she will outgrow them before the end of winter. I will be buying more in a larger size soon. For reference, my child is a large 3 year old, weighs 35 pounds and seems to be growing an inch every month.
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