High temperature thermo plastic shell. Four 3M lime-yellow reflective 1 x 4 inch strips. Closed cell energy impact cap. Exclusive Phenix suspension liner (nape strap or ratchet). Nomex and fire retardant cotton 11" wildland shroud provides both ear/neck and face protection (sewn-in or detachable). Nomex webbing chinstrap (postman's slide, quick release, or combination). Screw knob attachment kit. Compliant to current CAL and US OSHA standards.