Add cool hats and caps to your little boy kid’s wardrobe from top brands via TopOfStyle. Under Armour offers a plethora of products ranging from clothes to headphones and watches. The brand is immensely popular amongst power athletes who strive for perfect outwear clothes for training and important sporting events. The green color shows freshness, health, and energy. Durable or fancy? Look or feel? What you want in your Under Armour Green Hats & Caps for boys depends on materials like Polyester, Acrylic and Knit Fabric.