The Carhartt Relaxed Straight Steel Braddock Pant is a pair of men's work pants cut from a canvas blend with cotton in the mix, and Rugged Flex stretch keeps that canvas moving with the wearer instead of against them. Rugged Flex stretches as the wearer moves, then recovers once the motion stops. What Our Gearhead(R) Experts Are Saying:"I can step up onto tailgates and drop into squats all day, and the canvas never binds. The stretch panel across the back and the waistband flex where canvas would otherwise pull tight, so these pants move when I do."