One of the most durable fabrics in Carhartt's offering, our twill gear is some of the toughest around. Carhartt's twill clothing comes with the ingenuity gained from over a century of expertise in crafting the best workwear for the American worker. We've rigorously field tested our gear using real workers on real jobsites. The result? You can be assured that when you choose Carhartt, you choose quality. For superior quality you can trust, trust Carhartt. We take twill to the next level with our flame-resistant twill gear that meets NFPA 70E and NFPA 2112 standards up to Cat 2. For the most intense work situations, our flame-resistant twill clothing is essential for those days when the job throws everything it has at you. When the job demands your utmost, wear the utmost in durable, rugged work gear. Whether you need twill shirts, pants or shorts, Carhartt has you covered. For those days when you need durable gear that beats the heat, our twill shorts do double duty: you get twill work gear that works as hard as you do, and you get to stay cool on the job all day long. When the job gets tough, the tough get Carhartt.