I bought two pairs of these, one for each of my children, for a ski trip. When I transitioned from warmer climates to skiing in Colorado, I worried that they would be unhappy in the cold weather. I wanted something thin so her mobility would not be restricted. That was great. Both girls stayed warm and dry. My older child is very picky about clothes and doesn't wear anything uncomfortable. She had no complaints about it. They're more like children's pajamas - they conform to the body; So if you are not sure which size to order, please order one size up. I ordered a small for my 40lb 6 year old who normally wears 5/6 slim and they were loose. The large ones were good for my 9 year old who usually wears a size 8 or 10 depending on the brand. I would definitely recommend her.
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