- Under Armour Girls' Size Chart - Let them move, play, and shine in the Under Armour® Kids Big Logo Short Sleeve T-shirt. Featuring Under Armour's iconic logo front and back, this T-shirt is built with lightweight, breathable fabric that keeps up with every sprint, jump, and tumble. It has a ribbed crew neckline, short sleeves, and a straight hem. - All Under Armour® Apparel features a tagless design or tear-away tag with no left-over pieces. - Loose: Fuller cut for complete comfort. - Pull-on style. - 60% cotton, 40% polyester. - Machine washable. - Imported. - Ideal for your kid's everyday comfort and style, the Under Armour® Kids Big Logo Short Sleeve T-shirt is made from polyester fabric that provides superior comfort and breathability. This kid's tee is styled with short sleeves, a crew neckline, and a straight hem. Comfortable and stylish, this crewneck tee makes a great addition to your wardrobe. - Regular fit. - 100% polyester. - Machine washable. Measurements: - Length: 17 1⁄2 in - Product measurements were taken using size SM (8 Big Kid). Please note that measurements may vary by size.