The Life Liners P823 protective hood has a separate head with sewn on back and front bib. The back of the head ends at the nape of the upper neck. The back bib is sewn at this point. A two piece double layer yoke style bib is sewn to the head and forms a neck seam. The front and back bib are joined at the shoulder to form a notched shoulder seam on either side of the head. The face opening is sewn with ½ inch elastic and when relaxed measures 5 to 5.5 inches (fully stretched measurement exceeds 15 inches). All head and bib seams sewn with flat lock stitch and 100% Nomex thread. Classified by Underwriters Laboratories to meet NFPA Standard 1971 2007 edition.