Our top priority is keeping you safe on The job site, which is why we take flame resistance seriously. 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 Wrangler's flame-resistant (FR) jeans is made of pre-washed cotton denim for a comfortable feel and fit, but that’s not all. Wrangler's men’s FR flame-resistant slim fit jeans also come fully equipped with Wrangler's 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.The Slim Fit Flame-Resistant jean are NFPA2112 compliant and ATPV 23.8 calories/cm2.