The best kids’ base layer on the market uses a clever 2-layer construction to keep active youth dry and warm. Our Lifa® technology wicks away moisture while soft merino wool creates breathable warmth. We enhanced it with cool prints because basics can be fun too. The children's underwear features an elastic waistband, flat seams for added comfort, a graphic print, and non-irritating fabric. Composition: Shell: 57% merino wool, 43% polypropylene. Care: Machine wash warm - 40°C, very gentle cycle. Do not bleach, do not tumble dry, do not iron, do not dry clean. Do not use fabric softener, do not twist, use wool detergent, wash inside out.