666 Sinner Flat Bill Cap Not made for the straight and narrow. The 666 Sinner Flat Bill Cap is built for those who live by their own rules and wear their attitude proudly. Featuring bold Old English 3D embroidery across the front and signature Red Devil embroidery on the back, this cap brings together classic style and unapologetic character. Built on the premium FlexFit 210® Fitted platform in Heather Grey, it delivers a structured fit, flat visor, and all-day comfort whether you're in the garage, at a show, or cruising into the night. Details Premium 3D embroidered 666 Sinner design Rear Red Devil embroidery Heather Grey cap with black embroidery Fitted construction Flat bill visor Structured 6-panel design 83% Acrylic / 15% Wool / 2% Spandex Everyday comfort and durability Ships in 1–2 business days For the sinners, the rebels, and the ones who never fit the mold. Not sure what size to choose? Most customers wear L/XL. The FlexFit stretch-fit design accommodates slight variations in head size for a comfortable fit. Quick Fit Guide Small to average head size → S/M Average to large head size → L/XL Not sure what size you wear? Use a soft measuring tape and measure around your head about 1 inch (2.5cm) above your eyebrows and ears. Then match your measurement below: See SHIPPING POLICY for more details. ITEM# C-999-HEA-BLK-F