Waterproof & Easy to Clean - Easily decontaminate spills. Unlike fabric sofas, germs do not reproduce. Safe zippers and solid bio foams are used without any glue. Safe & Ergonomic Design - The ergonomic chair design helps proper bone formation in the lower extremities in early ages. We secured eco-friendly certificates including antibacterial, heavy metals, phthalate free and so on. Made of World Class Leather - SOFFKIN is a top class synthetic leather