Fully Involved Leatherworks Custom First Responder Gear are handmade with a limited lifetime warranty for Firefighters and Medics. Our 5/8” wide leather chin straps exceed what you normally get from a the other guys. They are made from 9/10 oz American Zebu Hides. These hides are brought to our shop and then hand cut. Each piece of leather for our straps are hand dyed using Oil Dye. This Oil dye not only will not come off, but helps ensure that your product will not crack, fades, or lose color over time. Thick enough to take the abuse from the job of fire and EMS, but supple enough to be comfortable. Our handcrafted products feature stitched edges, tough hardware, limited lifetime warranty, and the best customer service in the industry.