Thank you for viewing this product. Oakley FW Cover 17.0 Unopened and unused, compatible with 200cc, with dials (3, 5, 7, X). Therefore, I do not know the actual detailed material and specifications, but according to the product description on the internet, the main body seems to be made of polyester material, and the inside of the cover is made of boa material. Please refrain from purchasing if you are nervous about the condition. Also, please refrain from cancellations or returns after purchase and shipment. Please check the product in advance with the photos. Please read the profile before purchasing or commenting. If you have any other questions, please feel free to comment!