The XTM Merino Kids Thermal Top is made from 100% fine Australian Merino wool, providing excellent warmth as a base layer. At 230 gms, this thermal top is a thermo-regulator, it will keep them cool in warmer climates and warm in colder climates. Raglan sleeves, with thumbholes to stop the sleeves from shifting, and helps to keep their wrists warm under their gloves too. Non-itch, breathable, and odour repellent.