535 Sit Up is a modular custom sofa, available with completely removable covers in cotton, linen, leather or with custom covers. The sofa is manufactured with a metal and wood plastic composite structure and has been designed with the utmost attention to style, fineness, quality and care for details that are typical of Interior Design Made in Italy. All Vibieffe products are highly configurable. For this reason, not all product models, sizes, and available fabrics are displayed on our website. Please contact us for a complete list of product options. Please note: A fixed seat does not sit up. The adjustable/sit up seat can be adjusted to 5 different positions. See images on left for more information. For detailed product information, please click here.