There are several options available for the Kowabunga Ottoman. The first choice is the Sunbrella® Marine Solid color selection. This may be used on the entire piece. Option two; You can choose 2 Sunbrella® Marine Solid colors using one color for the seat and a different solid color on the side. Option three; You can create a piece using any Sunbrella® Marine solid color on the seat and any one of our Sunbrella® Stripes on the side. What is welt? Welt is the material covered reinforced piping that joins the seat material and the side material. The welt color may be changed to any of the Sunbrella® Marine solid colors for a 10% upcharge. Changing the welt color can give your piece a very distinctive look and really shows the design lines of the piece to give it that extra WOW!