Features1Hard hat sun shield is designed to keep the sun off of your neck while working in constructions sites,the ventilation holes allow breeze to hit,make you feel cooler. 2The neck shield stay on the hats, will not move around,easy to use and carry. 3Made from polyester shade with breathable mesh nape protector,lightweight, breathable, and non-irritating, and protect you from the harsh sun light without the feeling of getting hot. 4The helmet sun shade comes in bright color with reflective that keeps you safely visibility while on site. 5In the hot summer days, prevent glare, prevent sunburn on the neck, suitable for all kinds of helmets. 6SpecificationMaterial: PolyesterSize: One size (suitable for most helmets on the market)Venting hole: YesApplicable scene: construction site, outdoor installation, outdoor riding, fishing, etc.Function: sunshade, glare-proof, anti-neck sunburnPackage List2* Hard Hat Sun Shields