Men's Heavy Duty Cotton Work Pants Sometimes it is just that easy. 100% preshrunk cotton and a back outlet waistband for easy alteration make these pants a no-brainer. 100% Cotton-Blend Easy to Care it Industrial Wash, Light Soil, or Home Wash. Heavy-duty Closure with brass ratcheting zipper, button closure. Strong Fabric: 8.5 oz. Preshrunk Twill. Has the Two slack-style front pockets, two set-in hip pockets, left has button closure, darts over hip pockets for better fit.