If your job requires that you kneel or crawl around on all fours, or if your knees wear through too easily, then the Carhartt Rugged Flex Relaxed-Fit Duck Double-Front Pants for Men are perfect for you. Double-layering at the knees withstands extra wear and tear. Openings at the knees accept knee pads for jobs that require tons of kneeling and crawling. These work pants are made of tough 12-oz. 99% cotton/1% spandex duck, which is equipped with built-in Rugged Flex stretch technology. The relaxed-fit design and stretch technology work together to give you a roomy, comfortable fit and extra mobility while crouching and crawling. Carhartt Rugged Flex Relaxed-Fit men's pants also feature strong, sewn-on-seam belt loops, reinforced back pockets, and multiple tool pockets. Machine washable. Imported. Manufacturer style #: 103334. Tough 12-oz. 99% cotton/1% spandex duck Double-layer knees withstand wear and tear Rugged Flex stretch technology Relaxed fit roomier seat and thighs Sewn-on-seam belt loops Reinforced back pockets Multiple tool pockets