The Under Armour Compression Shirt for Men in size Large is a solid black long sleeve t-shirt made from a blend of polyester and spandex. It features a pullover closure and a firm compression level for a snug fit during gym workouts and running. The classic/fitted sleeve design and stretch material provide flexibility and comfort for active wear. The shirt also includes the signature Under Armour logo as accents, making it a stylish and functional addition to any active wardrobe.