Jack Adams Varsity Mesh Jockstrap. Featuring pin striped trim, this jockstrap is made from a soft four-way stretch mesh material that wicks away moisture while hugging the body. Together with its ergonomic fit and convenient fly front, you'll want a pair for every day of the week! 95% Polyester and 5% Lycra. XLarge. Chest: 44"-47". Neck: 17"-17.5". Waist: 36"-38".