La Soie Coffee is a cafe in Hanoi's Old Quarter that serves coffee, bagels, and smoothies. It sits on Dong Kinh Nghia Thuc Square next to Hoan Kiem Lake, and offers Vietnamese iced coffee, mango smoothies, and fried chicken bagels, with a rooftop overlooking the lake. The cafe has four floors and an elevator, and each floor is small but tidy. The rooftop on the top floor is quiet during the day and looks out over the traffic on the street in the evening.