Circa CX205 Vulc Shoes - Black/Grillz. Circa mixed the classic CX205 with a vulcanized sole and came up with the 205 Vulc, same great features as the original just a little bit thinner, a little less padding, and a little more board feel, removable ankle strap, leather uppers, elastic tongue straps, and extra laces make the Circa CX205 Vulc an instant classic