DOT Vented Matte Red Boneyard Motorcycle Half Helmet (Size L, LG, Large) DOT matte red boneyard motorcycle half helmet with skulls, removable visor and air vents. Meets and exceeds DOT safety standards. FMVSS 218 Helmet Meets and Exceeds D.O.T. Safety Standards. Super light weight, Approximately 30 oz. Smallest construction Free Helmet Bag and Owners Manual included. Quality Plush Interior. Removable visor. Face Shield Compatible Stainless Steel Dual D-rings adjustable chin strap. Durable exterior finish. Air vents for cooling. 1 year warranty. How to measure for a motorcycle helmet. Use a fabric tape measure and measure the distance around your head just above your eyebrows. Then select a size from these options, all sizes in inches . - XS 20 1/4 - 20 7/8 / SM 21 - 21 5/8 / MD 21 3/4 - 22 3/8 / LG 22 1/2 - 23 1/8 / XL 23 1/4 - 24 / 2XL 24 1/8 - 24 7/8 /