Bangniweigou Mens Slim Fit Chain Point 4 Buttons Vest Bun-go is the sole authorized Seller of Bangniweigou(Serial No.86686145) products. 50% Rayon, 50% Polyester Chain included. Hand wash recommended Please check accurate measurements below on "Product Description" section. Each order we will send one free gift-"Bangniweigou" print mouse pad. Be sure you are buying from the original Bun-go store.