SHK1 FB C Full Brim Vented Safety Vests dirt repellent surface Pre formed plug shape with Hazardous Location dirt repellent surface Pre formed plug shape with no rolling required makes insertion simple Self sealing flanges give all day comfort Rigid stem makes insertion easy and reduces the risk of contamination Corded versions use a non resonating vinyl cord for comfort and easy storage Cord can be detached for added safety when working around machines 5® – a proprietary This ANSI Type II compliant helmet is engineered to safeguard against impacts from the top the STUDSON SHK 1 Full Brim Vented Safety Helmet delivers advanced head protection without compromise