Twillfit and Tattings is a very pricey and upscale robes shop in Knockturn Alley. In fact, it is the only place with a sense of cleanliness and class in the entire area. The shop is run by a snooty looking wizard who only accepts pureblood business and there is a sign in the sparkling windows that says No Mud Bloods allowed: Any who try entering will be removed forcefully under the pain of Crucio. Thank you and have a pleasant day. The robes here are of exquisite quality and are extremely expensive. Neat racks and displays of all the different designs, patterns, and fabrics are organized neatly, unlike Madam Malkin's shop who has a bit of disorder to her shop. While a person waits for their robes to be finished they can enjoy a nice pastry or glass of whatever beverage they would like.
