This sofa is upholstered in premium semi PU material that is wear resistant mould proof and waterproof for easy maintenance and long lasting durability. The internal construction features a solid wood frame double spring support system high quality sponge and silk floss filling for stable structure and resilient comfort. Designed with a 110 to 115 degree ergonomic seat angle, the materials comply with American fire protection standards while maintaining structural stability without deformation over time. | Boyel Living | | Premium Semi PU Upholstered Sofa Solid Wood Frame Double Spring with Left Chaise Lounge | Taupe | Best Buy