Mens Designer Suit by Demantie. Get this Demantie suit today at the best price anywhere guaranteed. Fully Lined. Dry Clean. You receive 3PC Set Both The Jacket, Vest And The Matching Pant Fabric: Polyester-Crepe Size Suit runs true to size. Please choose the size you normally wear in designer Mens suits. The pant size will be 6 sizes smaller than the jacket.(for example, if you order a 46-regular suit, you will receive a 40-regular pant as part of the set)