Sinfully Sexy The all new Atlas collection is the perfect combination of fetish and athletics. Constructed in soft and stretchy viscose fabric, it's one of CB13's most comfortable briefs to date and features a contrast stripe on the pouch for extra emphasis. Wear this jockstrap with a Cellblock13 Atlas harness; complete with form-fitting elastic bands that provide plenty of stretch in your torso and back. Hurry and grab your favorite color now, or regret it later.