The Proviz REFLECT360 running cap is unisex and adjustable to fit all sizes up to 64cm head circumference. It is part of the ever growing range that has been so popular all around the world since its launch in 2014. The 100% reflective running cap is completely reflective and it is made from mesh fabric to give it fantastic breathability. About the fabric: The fabric used for the REFLECT360 range is highly technical. During daylight it is a modest grey colour. At night, when the fabric picks up an external light source, eg vehicle headlights, it gives ?astonishing reflectivity' (quote: Cycling Active Magazine). The material is CE EN 20471 certified.