3M Hc23 First Base is a waterproof, breathable, true high visibility cap with 360 degree reflective band for enhanced safety and maximum 360 degree visibility - reflective piping and strip. True high visibility - EN471 specified fabrics; compliment workwear. Made from waterproof and breathable polurethane polyester fabric. First Base 3 Classic High Visibility keeps workers visible and dry. Standard Peak Size: 70mm. CE Standard : EN812.