The Lincoln Electric Split Leather Helmet Bib with Press Fit Seal (KP3729-1) is a durable leather accessory designed to help protect your neck and upper chest from sparks, spatter, and slag while welding. Made from split leather for heat and abrasion resistance, it features a press-fit seal that attaches securely to most welding helmets, improving coverage and helping reduce gaps where debris can enter—ideal for shop fabrication, field work, and overhead or out-of-position welding.