PGI flashhood Cobra Classic 100% Nomex. 
Cobra^™ Classic^™ hoods provide double layer coverage of neck, upper chest and top of the shoulder blades. The notched side helps bib lie flat for improved interface with bunker coat. Flat-stitched seams eliminate bunching and won’t dig into skin. A half inch wide elastic face opening stretches to full 17" to ensure a snug fit around most SCBA masks. UL Classified to NFPA 1971 Standard on Protective Ensembles for Structural Fire Fighting and Proximity Fire Fighting – Current Edition.