Durafit Seat Covers, C1100 M1, 2003-2007 Chevy Silverado and GMC Sierra, Work Truck Seat Covers, Front 40/20/40 Split Seat with Manual Controls and Without Console, in Black, Twill Fabric 2003-2007 Chevy Silverado and GMC Sierra Work Truck Seat Covers in BLACK Twill Front 40/20/40 Split Seat with solid armrest, Separate covers for all parts. Picture is factory seat, covers are BLACK Manual Controls and Without Console. Put covers under seat belts with velcro seam on back. Made in BLACK automotive twill, six exact fit covers for sensible price. Twill is a durable flat woven material often used by auto manufacturers. A polyester based fabric, twill is very strong and is Teflon and UV treated to withstand stains and fading. We use US made automotive grade twill which is designed for use in vehicles.