Prowler RED Back-less C-Ring Jock Strap in black, red, white, and yellow Show it all off and leave nothing to the imagination with these Back-less C-Ring jock strap from Prowler RED. Ideal for showing off at sex clubs or between the sheets, this jock strap is made from 82% polyester and 18% spandex and features the Prowler Paw logo at the front of the waistband. The back is styled as a classic jock strap, and the front features a built-in c-ring so you are always fully exposed and ready for action.