Under Armour Hoodie Boy's Blue Sweatshirt Pullover Polyester Logo Youth Small The Under Armour Hoodie is a stylish and comfortable blue sweatshirt designed for boys in size small. Made from polyester, this pullover hoodie features long sleeves and the brand logo, perfect for regular fit during the winter, fall, and spring seasons. Easy to care for with machine washable instructions, this hoodie is a great addition to any boy's wardrobe for staying warm and fashionable.