Okura is a popular store in Daikanyama that sells clothes that's inspired by traditional Japanese styles. Their shirts, jackets, pants, etc. are dyed with indigo, a classic Japanese practice in dyeing. The second floor of the store features products that are exclusive for women, in there are purses, kimonos, and more.
It's a 3-8-minute walk to the west of Daikan-yama Station (Tokyu Toyoko Line)