The Carhartt Relaxed Straight Steel Baltimore Pant is a pair of men's work pants that stretch with every crouch, reach, and crawl. Rugged Flex fabric flexes with each move and recovers by the next, while a four-way stretch gusset and back panel add range for the deepest crouches. What Our Gearhead(R) Experts Are Saying:"I spend most weekends kneeling on concrete and crawling through tight spaces, and the knees take the worst of it. The double knees are reinforced, so the stretch never costs these pants their toughness where the wear is heaviest."