Twill grain vinyl is a two ply composite made of a PVC twill grain outer layer and a Polyester/Cotton lining fabric.

Stayfast canvas is a three-ply composite. It is a tightly woven cloth canvas. The yarn is solution dyed before it is woven so the color is uniform throughout. Most convertibles that came with a cloth top were originally Stayfast canvas. Stayfast is more expensive than the vinyl options. This convertible top is a superior product with excellent wrinkle and U.V. resistance. Weatherability is superior and excellent durability and low temperature flexibility.