Our Cycling Classic helmet visor is designed for maximal UPF50+ sun protection coverage. The largest of our bicycle helmet visor models, the Cycling Classic provides broad 360° sun protection. Use our helmet visor with virtually any bicycle helmet to increase your enjoyment of a ride in the cool comfort of shade. Features - Requires no modifications to your helmet or sticky adhesives - Air flows freely through helmet vents, promoting cooling - Helps block glare - Adjustable front visor angle to see forward while in a head down riding position - Front strap keeps brim from coming down and impairing vision - Rear brim height adjustment for use with backpacks and mirrors - Reinforced brim edge for added stability - Engineered to withstand the wind forces imposed by outdoor activities. Comfortable in combined wind speeds of up to 25 mph (sum of your speed and wind from all directions.) Note: This model is not designed for high speed downhill descents or performance cycling. - UPF50+ brim (helmet attachment crown not rated) - As with other visors, does not provide top of head sun protection - 3½" front brim contours to 4½" at rear to provide excellent neck sun protection. Note that dimensions are of brim itself. If comparing to a favorite hat that sits against the head, add the thickness of the helmet (typically 3/4" -1") - Lightweight (weighs approximately 5 oz.) - Water Resistant - Hand wash, hang to dry - One size fits most helmets 26- 32" in outer circumference where the Da Brim will sit - Available in 5 colors: Gray, Red, Blue, White and Fluorescent Yellow; all colors with black underbrim. Installation - The Cycling Classic is designed to work with both traditional bicycle helmets that have a notch or indentation at the back of the helmet to nest the Da Brim's attachment strap and with more rounded helmets.