Zippy Denim Jacket, Denim/LimeZippy indeed! The Zippy jacket is done in a stretchy cotton blend with the grain of denim, but the comfort of a knit. It has a zipper front placket, with a set in shoulder, three quarter length sleeves and a face framing spread collar. The fit is relaxed, though the look is very polished. We love the color combo here, as the blue yarns are woven over a lime green background.