Boston Sofa with Sunbrella CushionAluminum Frame with Woven Fiber for All Weather Durability The Boston Sofa sets the proportional anchor for the full Boston outdoor collection at 88 inches wide, comfortably seating three across with the same enveloping backrest geometry that defines the Sevillano designed Boston line. The powder coated carbon aluminum frame supports the polystrand strap rope weave across the back and sides, creating a sofa that holds its silhouette under load and