The Mountain Warehouse Kids Merino II Base Layer Set is crafted from high-quality Merino Wool, featuring a contrast detail design. It includes a crew neckline and long-sleeved raglan style top, along with trousers. This set is easy to wear as it uses a pull-on fastening system. The fabric boasts anti-bacterial, breathable, lightweight, and moisture-wicking properties for enhanced comfort. It weighs 180gsm. The set comes with one T-Shirt and one pair of trousers. Available in sizes: 22 inches for ages 2-3 years, 22.5 inches for ages 3-4 years, 24 inches for ages 5-6 years, 26 inches for ages 7-8 years, 28.5 inches for ages 9-10 years, 30.5 inches for ages 11-12 years, and 33 inches for ages 13 years.