Extremely rare, discontinued worldwide. Valuable S size (equivalent to Japanese M size). Perfect for treating yourself, a gift for a loved one, or a Christmas present. New, unused, and unopened. Please note that returns and exchanges are not accepted for new, unopened items. The images are of one of the items in stock. Please understand that the product delivered may not be exactly the same as the images. Calvin Klein CK jockstrap Men's underwear, athletic wear, sports innerwear Gym, training, present, split-butt supporter Calvin Klein CK men's underwear, underwear, innerwear, briefs, boxer briefs, pants, shorts, sports innerwear, sports underwear, training wear, gym wear, fitness, athletic, running, workout Muscle training, jockstrap, supporter, athletic supporter, sports supporter, front opening, low rise, low rise pants, undershirt, sports fashion, men's fashion, street style, set sale, bulk sale, new, unused, unopened, authentic, overseas model, rare size, S size, small size, gift, present, Christmas, birthday, gift, brief lace Y-back, Y back