**I’d start with Chicago in Harajuku for the yukata, and Fukufuku in Shinjuku because it’s close to you.** Secondhand samue is harder to pin down—I couldn’t verify a shop currently stocking it.

- **Chicago, Harajuku:** A good option for secondhand yukata and obi. Budget roughly **¥2,000–5,000 for the garment**, with stock and prices varying. Harajuku is a short JR Yamanote Line ride from Shinjuku. Check the [official branch list](https://www.chicago.co.jp/store.html); [recent shopper reports](https://www.reddit.com/r/Thrift/comments/1jpfodn) give that price range.
- **Fukufuku (福服), Shinjuku:** A specialist secondhand kimono shop at **Shinjuku 2-7-2**, open **11am–7pm**. Convenient to try first and ask about both items, although current yukata/samue stock isn’t confirmed. [Official shop information](https://shopping.geocities.jp/fukufukukimono/).
- **Miyoshiya (三喜屋), Nakano Broadway B1:** Another affordable secondhand kimono shop, about five minutes’ walk from Nakano Station—an easy trip from Shinjuku. Worth browsing for yukata; prices and selection vary. [Location and reviews](https://map.yahoo.co.jp/v3/place/JUJHJidzrOI).

**For samue, if new is acceptable:** Kohtariya in Asakusa currently advertises an in-store **¥4,800 including-tax cash special**. It’s at **Asakusa 7-2-7**; check availability before making the trip. [Official store page](https://www.kohtariya.com/tenpo/tenpo-tokyo.htm).

You can show staff: **「中古の作務衣と浴衣を探しています」** (“I’m looking for secondhand samue and yukata”). Try them on, check for stains, and ask whether the yukata price includes an **obi**.