Calvin Klein underwear was first introduced in 1982 and continues to be regarded as one of the most well-known designer underwear brands for men and women. The Calvin Klein mark and brands are beneficially owned by the Warnaco Group for underwear, intimate apparel and sleepwear. Warnaco produces and distributes the products globally through better department and specialty stores as well as Calvin Klein and ck Calvin Klein stores and its own free standing Calvin Klein Underwear stores.