The back of the sofa is crafted with natural latex, coconut coir and natural wool encased in an organic cotton vanilla fabric. Standard cushions are 2 inches of latex surrounded by wool for the seat and all wool inserts for the back cushions. The Organic Modular Armless 7 Piece Sofa is our newest and most customizable natural modern piece of furniture in our entire collection. Comfort has never been this natural and affordable, Pillows, body, and base are all filled with natural wool. No petroleum-based chemicals, no polyurethane foam, just pure and natural ingredients made with your health and comfort in mind. Ask a team member for assistance. In manufacturing we fill all Sofa cushions with natural Latex\ and natural Wool. To upgrade to organic fill, use the "All cushions organic fill upgrade" option to upgrade from natural Latex / natural Wool to Organic Latex (GOLS Certified) / Organic Wool (GOTS Certified). "Legs are not chemical-free and will have a stain.