Detour Helmets D.O.T. Flat Black 3/4 Helmet for Motorcycle Riders with Visor If you have to cover your dome and let?s face it, you should, then the Detour 3/4 helmet is a great way to do just that. Classic helmet design combined with premium material for a helmet that will protect your head, and keep Johnny Law at bay. Features: D.O.T. approved Durable lightweight ABS shell EPS (Expanded polystyrene) interior Black Quick Release chin strap Protective helmet bag Sizes Range From XS-2XL Helmet sizing: Proper helmet fit is vital to the performance of a helmet during an impact. For maximum protection, the helmet must fit properly with the chin strap securely fastened and provide adequate peripheral vision. Measuring the head is only a starting point for the entire sizing procedure. Due to varying shapes, heads that are apparently the same size when measured by a tape may not necessarily fit the same size helmet. A small metal tape measure or a cloth tape may be used to make your initial measurement. You can also use a string, which can then be laid against a measuring tape. The circumference of the head should be measured at a point approximately one inch above the eyebrows in front and at a point in the back of the head that results in the largest possible measurement. Take several measurements. The largest measurement is the one you want to try on first. If you use a balaclava or head sock, always measure and fit the helmet with it on. Use the Detour Helmets sizing chart to determine the size that best matches the head measurement. Shipping: Please allow 2-5 Business days for Delivery Tracking number will be provide for every order within 1 business days About Us: We are an Authorized dealer for Vance Leather. We offer different kinds of Motorcycle Helmets, Bike Helmets, Retro Helmets... Feel free to contact us at anytime. Response time is up to 6 Hours.