Clothing sets are a comfy, fashionable staple that every boy should have to look great and enjoy various seasons throughout the year. An American-based fashion house, Calvin Klien provides a large variety of items from casual to chic clothes. Justin Beiber, an American pop singer, was one of its brand ambassadors. Green also represents health and eco-friendly. Some popular patterns in Calvin Klein Green Clothing Sets for boys are Camouflage, Graphic, Solid and Tropical.