Lightweight Performance Fabric: Made from 100% polyester for a breathable, moisture-wicking feel during active play. Versatile 3-in-1 Wear: Wear the short sleeve alone, the long sleeve alone, or layer them together for a dynamic look. Official NBA Team Graphics: Show off your team pride with bold, high-quality logos and designs. Perfect for Young Fans: Designed for boys ages 8-20, offering a relaxed fit that moves with them on and off the court. Youth boys sizing: Small (8), Medium (10-12), Large (14-16), X-Large (18-20) The Outerstuff NBA Youth Boys (8-20) Performance Long and Short Sleeve T-Shirt Combo is the ultimate game-day essential for young basketball fans. Made from 100% polyester, this lightweight and breathable set ensures all-day comfort, whether on the court or cheering from the stands. Designed for versatility, this combo can be worn in three different ways—wear the short sleeve alone, the long sleeve alone, or layer them together for a bold team look. With official NBA team graphics, this set lets young fans represent their favorite team in style and comfort.