If you’re not looking for cotton underwear, we even have a plethora of Nylon, Spandex, Polyester, Lace, and Silk underwear for girls. Under Armour is a prominent US-based sports equipment and clothing apparel brand. It was launched in 1996 by its founder Kevin Plank. The brand is operational in 15 major countries across the world with over 15000 retail stores. Blue represents the sky, water, calmness, and lightness. Such products are made of high-quality materials like Blend and Polyester. Durable and comfortable materials make high quality Under Armour Blue Underwear for girls with a fresh look. Choose your Under Armour Blue Underwear for girls style from Casual and Activewear. Fulfill your fashion desire with our easy to shop online store.