[This review was collected as part of a promotion.] My kids have worn Smartwool base layers for years and they generally do the job of keeping them warm, comfortable and without manmade toxic fibers. The quality/weight/weave of the wool varies from style to style. It seems like the prints are a bit stronger than the solid colors. We buy the wool because we can't find a non-animal, non-toxic alternative base layer fiber--if you have any ideas, please respond!
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