Biba Salotti sofas are made of natural and innovative materials selected by manufacturer according to criteria of quality, safety and solidity. Such characteristics combined with accuracy of traditional working methods make each Biba’s sofa precious and durable. We favour research of relax, balance of soul in all our design. Wood structure of our upholstered sofa is covered by materials with different density to grant correct and healthy backbone position when sitting. We value its position in order to get a comfortable sitting without damaging articulations, muscles and ligaments. The springs’ system located inside seat cushions is covered by a thick protection layer which grant their durability and comfort of seating. The filling of our backrest’s cushions comes from a correct and balanced ratio between goose and duck downs (carefully washed, sterilized and hypoallergenic) with a polyurethane foam of different thicknesses. All our cushions are finally covered by a white clothe made of pure cotton.