The structure is made of stress-resistant polyurethane treated to be water repellent; the base is in polyester fabric and is covered with a seat pad available in polyurethane foam treated to be water repellent or in the Flex version. The structure has a removable cover in Aquatech braids, finished with a fringe on the upper side, or in Aero fabric. The seat pad has a removable cover in Luz, Rope T, Brio or Aero fabrics, suitable for outdoor. At least two loose cushions per person are necessary to complete the seat.