Structure: wooden frame padded with polyurethane foam and resin-backed velveteen upholstery.
Back springs: steel zig zag springs.
Seat springs: helical springs.
Seat cushions: core made of polyurethane foam covered with feather quilting, all covered with a cotton slip.
In the version with removable covers the back quilt is made of a resin layer which can be unzipped from the rest of the cover.
Model with fully removable covers only in the fabric version.
The sofa-bed version is not available.