Browse our variety of shirts available in different colors, patterns, and sizes. 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. Blue is a very calming and relaxing color. Best selling Under Armour Blue Shirts for men are available in an assortment of fabrics like Blend and Polyester. Shop what appeals to you with ease from top brands and retailers.