Our top priority is keeping you safe on the job site. which is why we take flame resistance seriously. Our Wrangler® FR jeans are built to last through the rigors of dangerous and rugged working conditions. so you can dress for the job with complete confidence. Each pair of our flame-resistant (FR) jeans is made of pre-washed. heavyweight cotton denim for a comfortable feel and fit. but that's not all. With a full seat and thigh. these FR jeans feature the same fit as the Original Cowboy Cut 13MWZ that you know and love. They come fully equipped with our authentic five-pocket styling. 'W' stitching on the back pockets. and a safety orange ID patch on the outside for high visibility. Not too loose. Not too tight. Plus. these hard-working jeans fit over boots.