Same great fit you are used to but with the added strength of DuPont Kevlar. 8.25 oz. 65% Polyester, 20% Cotton, 10% Nylon, 5% Kevlar Twill. The '67 collection features fabrics built for flex, comfort and range of motion. Whether choosing our flex twill or our Kevlar strengthened twill these fabrics are sure to outperform. These garments are designed for strength with reinforced stitching to prevent rips and tears, and stretch for comfort and mobility. Light and strong to tough and unstoppable, Dickies '67 is ''Engineered to Move'' with stretch, flex, and Pivot-Tek for range of motion and ease of movement and abrasion resistance from Kevlar to outlast. Material: Polyester, Cotton, Nylon, Kevlar Twill.