Children can stay warm in these technical merino wool first layers with LIFA® technology The best technical woolen layers on the market. LIFA® fiber technology that keeps you dry is combined with a premium merino wool exterior offering excellent insulation and moisture wicking properties. Knees and elbows are designed with 100 g / m² Polartec® fleece reinforcement. Features: -Double layer construction - 100% merino wool exterior combined with an interior equipped with LIFA® technology - Fleece reinforcement on knees and elbows -Non irritant -Flat seams -Fabric 215 g / m² Fabric: 57% Merino wool / 43% Polypropylene