The series features down-wrapped, high density foam seat cushions, a rock-solid CAD-engineered plywood frame and a contract-grade sinuous spring system.The entire TRNK Collection is available in a wide range of carefully-chosen upholstery options, including a number of 'Performance' fabrics treated with stain repellant finishes (Liquid rolls right off! It's actually quite incredible).Each piece is made-to-order in the USA by expert craftsmen using the highest quality materials and techniques.