This is a convenient case for storing eyeglasses and sunglasses. The surface uses wrinkled Tyvek from DuPont, USA. The storage part is made of cushioned polyester material to prevent scratches on the lenses. The case opens and closes with a single touch by pinching the entrance. What is Tyvek? Tyvek is a highly durable non-woven fabric made of 100% high-density polyethylene. Its unique structure provides excellent waterproof performance and outstanding strength and durability. While it has a paper-like texture, it is an excellent material used in construction materials and protective clothing. 【Size】 Approximately 18cm wide / 9cm long 【Color】Black 【Material】 Tyvek Please note that the date glasses and sunglasses we handle are produced overseas, so there may be minor scratches or distortions. Please understand this before purchasing. Color: Black系 (Black-based)