Lightweight fabric makes the Under Armour Boys' Long-Sleeve Tech Tee Shirt breathable enough to wear alone, or as an added layer to lock in warmth on extra chilly days. Signature moisture transport system keeps him dry while anti-odor technology reduces the growth of odor-causing microbes for a fresh feel that lasts. Other features include chafe-free flatlock seams, raglan sleeves and front logo graphic. Made of 100% polyester. Imported. Sizes: XS-XL. Colors: Carbon Heather/Black, True Gray Heather.