Product features: 1: The sunshade effect is good. 2: It features light weight. 3: It is easy to use and operate. 4: It can prevent neck from being hurt by sunlight. It is suitable for all types of helmets! 5.Innovative "baseball cap" shape to improve the vertical vision. 6.Also tested for front back wearing, to reduce encumbrance. 7.Textile harness: 3 textile straps with 8 fixing points. 8.Foam sweat band and electrical insulation. 9.2 possible positions of the headband (top/low) for a better comfort. 10.Retro reflective bands for high visibility day and night.