This is Dickies' best-selling short sleeve coverall. It is a combination of durable poly-cotton twill, lightweight fabric for warmer weather, and with room to move so that you can work all-day.  Model 33999 Color: Grey (GY) 5-ounce, 65% polyester/35% cotton Easy care stain release & wrinkle resistant Durable poplin twill fabric Bi-swing back and elastic waist inserts at sides Concealed snaps at the waist, neck and chest pocket Large back pockets & button closure on left back pocket Heavy-duty nylon 2-way front zipper Available in 4 colors