Under Armour COLDGEAR® LEGGINS The boys' Under Armor COLDGEAR® LEGGINS are a base layer that keeps you warm and dry without bulk so you can focus on any activity. They are made of a double-layer fabric with an ultra-warm, brushed interior and a smooth, quick-drying exterior. At the same time, they ensure ventilation and remove moisture and sweat. Thanks to the 4-way stretch material, they allow movement in every direction. Under Armour COLDGEAR\u00ae LEGGINS