Breathable and flexible material collection because comfort is the biggest factor people look for during undergarment shopping. Calvin Klein Inc. is an American fashion brand that was set up in 1968. It was established by the popular fashion designer Calvin Klien. Lifestyle and home accessories, watches, fragrances, and more. Sky blue is generally used in shirts and tops. It is less preferred in bottom wear. Best selling Calvin Klein Sky Blue Underwear for men are available in an assortment of fabrics like Cotton, Modal, Polyester and Blend. Shop what appeals to you with ease from top brands and retailers.