Compatible with over 20 long brim hard hat brands, the HexShade UV blocks 100% of harmful ultraviolet radiation from users head, neck and shoulder areas. Complete with a removable, launderable neck shade, the HexShade UV can be applied, or taken off in a snap. Built of weather resistant materials, the HexShade UV will last seasons of working in the sun. The shade snaps directly onto the front and back of the hard hat or Ceros safety helmet, extending shade protection zone by up to 3 inches. Easy to put on or take off a hard hat in just seconds.