They feature a double layer of material around the knees, providing much-needed protection at the workplace. 7.6 oz twill fabric; 81% cotton/18% polyester/1% spandex Dickies FLEX fabric for comfort and ease of movement Easy-care stain release and wrinkle resistant fabric Skinny fit, low rise Tapered leg Lower rise Sits below waist Skinny in seat and thigh Reinforced double knee Multi-use cell phone pocket