Our men's undergarment range comprises items that are comfortable and smooth on the skin. Starting in 1968, Calvin Klien is one of the leading fashion brands in the world. It particularised in different types of clothing which include jeans, coats, daily wear, sportswear, and other collectibles. Add sexiness to your look with many shades of Gray. We have Calvin Klein Gray Underwear for men available in the most common fabrics like Cotton, Blend, Modal, Nylon, Polyester and Microfiber. Pick the right one for your needs.