Injected flame-retardant polyurethane foam and polyester fiber over internal frame in steel. Feet in plypropylene. The fabric used for upholstering the collection is quilted on particular design of the designer Patricia Urquiola. The covers of the Redondo collection are removable.Upholstery: the Redondo collection covers are removable,except for codes 061 and 830.Quilting design by Patricia Urquiola.Orders for items using less than 5 linear meters of quiltedfabric are not accepted.Quilted version: add 2 weeks to the standard delivery times.Standard legs height: 40 mm. Available on request: leg setwith 70 mm height.