The Under Armour HeatGear Young Boy's Long Sleeve Shirt in Black is a compression shirt designed for active young boys. Made from polyester material, this shirt features a solid black color with a crew neck and long sleeves, making it suitable for both activewear and casual occasions. The shirt is machine washable and includes the signature Under Armour logo as accents. Perfect for running and jogging, this pullover shirt is ideal for the winter, fall, and spring seasons, providing both comfort and style for young athletes.