Made of 65 percent polyester and 35 percent cotton, they have durable material that helps keep you protected from grease and chemicals during some of the toughest jobs. A front zipper and a snap button closure can help make changing clothes faster and easier when you're in a hurry. The men's coveralls is designed with four front and two large back pockets so that you have a place to put small essentials while you are working. There is an elastic waistband that helps hold the garment closer to your body, keeping you safer and without loose clothing. A side hammer loop makes the coveralls more functional.