Protein Leather Protein leather is a type of high-grade PU, and it has several major advantages compared to regular PU. 1. Soft: Protein leather's ductility is far superior to that of regular PU. 2. Durable: Protein leather has excellent abrasion resistance, a long lifespan, and can withstand heavy use. 3. Breathable: Protein leather is breathable and suitable for long-term wear. 4. Soundproof: Protein skin fits the skin and also has excellent soundproofing properties. Memory Foam The basic type is made of a polymer called polyurethane. This is a material often used in most sofas, mattresses, car seats, and spray foam. 1. Long lifespan: Memory foam is a very durable material and has a longer lifespan than regular foam. 2. Improved soundproofing: Memory foam conforms to the shape of the head, improving soundproofing. 1. For health reasons, it is recommended to replace the ear pads every 7-8 months. * Orders cannot be shipped on weekends and holidays. * Orders placed by 3 p.m. on the same day will be shipped.