Construction Features – Back cushions – the fiber in our back cushions and throw pillows is 1005 recycled fiber. Cushions – Our standard cushioning is made from premium quality soy-based foam that replaces 20% of Petroleum-based ingredients, wrapped in 80% regenerated fibers, and covered with 50% Cotton/50% Polyester FR Free down proof ticking. Padding – Our standard padding material is a combination of recycled fiber, soy-based FR Free foam and synthetic batting. Frames – Each frame is made of select hardwoods or engineered hardwoods from certified sustainable forests. The joints are either double-doweled and blocked on every corner or mortise and tenon construction. Springs – Our eight-way hand-tied springs are made with 80% recycled metal components. Strapping – Steel strapping is used for spring support.