Trim 09 : Material attached to the exterior surface of protective clothing or equipment to enhance visibility. Retroreflective materials enhance night time visibility, and fluorescent materials enhance daytime visibility
NFPA 1977 Standard on Protective Clothing and Equipment for Wildland Fire Fighting, 2005 ed. http://www.nfpa.org/assets/files/aboutthecodes/197 7/1977_f2010_rop_ballot.pdf, (Std: Prot Clothing and Equip for Wildland Fr Fight - Amer) {431 NFC}