A Standard Safety Hard Adjustable Helmet is worn for safety purposes against head injury from falling objects, rain or any sort of electrical impacts while working at manufacturing or construction sites. They have several adjustments with removable chin straps so you can modify their fitting as required. The design features interchangeable side adapter slots, ventilation ports to improve circulation and reduce heat, a sunlight-reducing viewfinder, and a washable sweatband to prevent sweat from dripping. The best thing is that you can wear them without pain or discomfort for the whole day.