Shelby CAL-OSHA Structural Fire Glove, Wristlet 6 Pairs The Shelby 5009 Gloves are flexible, tough, and lightweight. They are Gunn-cut with a seamless palm and have a flame retardant lining. It is lock stitch sewn with Kevlar thread and has a Nomex wristlet. This glove meets Cal-O.S.H.A requirements.