Gag them with this six-panel trucker cap with a mesh back. I have created it for the Starrfuckers Kickball Team featuring the team logo. 

• Structured, mid-profile, six-panel cap
• 47/25/28 cotton/polyester/nylon
• Hard buckram front panels
• Mesh back
• Permacurv visor, matching under-visor
• Plastic adjustable closure
• 3-1/2" crown
• Head circumference - 21 5/8" to 23 5/8"