The ‘Sole’ collection (developed and conceived on the basis of the different heights of its mattresses) is characterised by models with a square, compact, linear and very soft back thanks to its fibre padding. A 13 cm or 16 cm mattress offers two different seat heights ranging from about 44 cm (in the version with a 13 cm mattress) to about 48 cm (in the version with a 16 cm mattress). These differences speak to different target groups. The 44 cm version is aimed at a younger public whilst the 48 cm version is for more ‘mature’ customers. With entirely removable microfibre and fabric covered versions, this model is also available in leather. The collection offers a choice of up to four different, removable and interchangeable armrests.