Matthew Williamson Opal Blue Wool blend Double Breasted Coat US 4 UK 8. ASO Same style and color as Duchess of Cambridge in media. Wool Double Breasted Royal Coat US 4 UK 8 "Opal Blue" ASO HRH. Double pocket flaps at waistline. Outer: 75% Wool 25% Polyamide Lining: 100% Silk. Please check out my other items. The item "EUC Matthew Williamson Opal Blue US4/U8 ASO Royal" is in sale since Tuesday, December 29, 2020. This item is in the category "Clothing, Shoes & Accessories\Women\Women's Clothing\Coats, Jackets & Vests". The seller is "happyfabfinds" and is located in Canonsburg, Pennsylvania. This item can be shipped to United States.