Keep the kids warm in this Merino wool base layer set with LIFA® technology. The best wool base layer on the market. Combining the unique LIFA® fiber technology next to skin to keep you dry, with a premium Merino wool exterior with superior insulating and wicking properties. Knees and elbows has a 100g Polartec® fleece reinforcement. Fiber Content: 57% Merino Wool, 43% Polypropylene Weight: 270g FEATURES 2-layer construction 100% Merino wool exterior combined with LIFA® technology interior Fleece reinforcement on knees and elbows Non itch Flat lock seams 215g/m2 fabric