Stainless Steel Reusable Travel Coffee Mugs to easily take out your drink everywhere! We are calling all coffee lovers out there! At Greens Steels we re-engineered our flasks to create an alternative to ordinary disposable paper cups. We hate waste and love our planet, that's why our solution is not only made of eco-friendly materials but offers great durability so you can use the cups over and over while remaining intact. Our coffee cups are available in stylish colors: red wine, black and silver, and convenient capacities: 12 oz and 16 oz.