Lock & Co Green Hat View/Shop Categories: Duchess Wardrobe, Duchess' Hats Description Description Catherine wore a green Lock & Co hat at the 2017 St. Ptrick’s Day Parade. The cocktail molded hat a suede finishing and was custom designed by the head designer Sylvia Fletcher. Embed from Getty Images Related products Roland Mouret asymmetric neck dress0 out of 5 Collette Dinnigan Red Lace Dress0 out of 5 Jimmy Choo Celeste Velvet Clutch0 out of 5 UFO Pink Rose Diamond Earrings0 out of 5 Get all the latest posts in your inbox. Subscribe Here