A Seoul government souvenir has turned into a viral fashion item in Japan.

The product is the Seoul My Soul ? ONGO Belt Cap ??a city-branded cap that drew 2.7 million views after a Japanese social-media user posted herself wearing it.

There was no paid campaign behind that viral post, according to the Seoul Metropolitan Government.

By the numbers

2.7 million Views on the Japanese social-media post

32,000 Likes

7,900 Reposts

9,300 Bookmarks

KRW 63,000 Current listed price for the ONGO Belt Cap on the official DDP Design Store page

September 7 Date of the viral Japanese post cited by Seoul

Why this souvenir is different

City souvenirs are usually expected to look like souvenirs.

This cap works because it does not have to.

ONGO's design uses Seoul branding as a fashion detail rather than turning the product into a conventional tourist logo item.

That makes it wearable after the trip ??which may be exactly why it spread organically on Japanese social media.

Seoul is treating merchandise more seriously

The city has been expanding Seoul My Soul merchandise beyond basic stationery and keychains into fashion, accessories, food and collaborations with private brands and designers.

Official Seoul merchandise is sold through dedicated Seoul My Soul shops and the DDP Design Store.

Can you still buy the viral cap?

The official DDP Design Store lists the ONGO Seoul My Soul Belt Cap at KRW 63,000.

Online stock and purchase availability can change, so visitors should check the official product page before making a special trip.

For international visitors, offline Seoul My Soul stores may be the more practical route because the DDP online shop primarily serves the Korean domestic market.

Why this matters for Shop Korea

The viral cap points to a broader shift in Korean souvenirs.

The strongest products increasingly look less like objects made only for tourists and more like ordinary fashion or lifestyle products that happen to carry a place identity.

That gives Seoul something cities such as Tokyo, New York and London have long understood:

a city brand can become something people actually want to wear.

Sources
  1. Seoul Metropolitan Government ??viral Seoul My Soul ? ONGO cap
  2. DDP Design Store ??ONGO Belt Cap listing
  3. Seoul Metropolitan Government ??Seoul My Soul shop locations