You will hardly find anything to keep your kids warmer than merino wool blend thermal base layers. Merino wool is ideal fabric for toddlers and kids due to its natural ability to regulate body temperature. Breathable wool knit tank top will keep your child toasty and comfortable on cooler days.
Child Basics – Arbre Bleu
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ENGEL - Women's Lightweight Moisture Wicking Merino Wool and Silk Thermal Base Layer Top
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Child's Long Sleeve Top in Wool/Silk (1-14y) - Woollykins
Women's Health 2022 Healthy Sleep Awards - Best Sleep Products
Child's Merino Wool & Silk Thermals/PJs - Top (1-14y) - Woollykins