Nha May Cao.

Fine Italian fabrics, fine men’s suits / 50 Triet Viet Vuong / Hoan Kiem / 3945 4988 / 8am-7pm; and Hoa Fashion, favoured by diplomats and their spouses for m/w suits / 1a Xuan Dieu / Tay Ho / 3823 8498 / 8am-noon & 2-7pm / see Shop./Tay Ho. Both accept walk-ins, but neither are 24-hr tailors, so allow time for your dapper new duds.