Built for guys who require added protection on the job, these lightweight men's jeans are made from flame-resistant, moisture-wicking, quick-drying denim for lasting comfort and durability. PRO FLEX technology incorporates fabrics that stretch and strategically placed gussets and bi-swings to give you full range of motion. The bootcut design is slightly tapered in the thigh area and wider from the knee to the hem, making it easy to wear your favorite work boots with your jeans.