• Thermal underwear set for children, ideal as a base layer for winter sports and outdoor activities in cold weather. • Thermal underwear set consisting of a long-sleeved shirt and leggings. • Designed to provide a warm and comfortable base layer in cold weather. • Flatlock seams in yellow contrast color to prevent chafing and improve durability. • Stretchy and breathable fabric that allows full freedom of movement. • Ideal for winter sports such as skiing, snowboarding, or hiking. • Elastic waistband on the pants for a secure and comfortable fit.