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The flâneur's letter

New houses, rare pieces and private appointments. Once a month.

Flâneur Séoul

Contemporary designers from Seoul, curated for Paris.

Instagram — @flaneurseoul

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The flâneur's letter

New houses, rare pieces and private appointments. Once a month.

Flâneur Séoul

Contemporary designers from Seoul, curated for Paris.

Instagram — @flaneurseoul
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Company information

Flâneur Séoul is operated by Soonicorn Inc. · CEO: Geonhaeng Lee

Registered office: #104-215, 137 Wangsimni-ro, Seongdong-gu, Seoul, Republic of Korea

Business registration no. (KR): 866-87-02563 · E-commerce permit: No. 2026-Seoul Seongdong-0183

Customer service: +82-70-8983-8996 · Email: ops@soonicorn.co.kr

Data protection officer: Seongyeol Yang (syy@soonicorn.co.kr) · Hosting provider: Soonicorn Inc.

© 2026 Flâneur Séoul — All rights reserved.

Site in English · Français · 한국어 available

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Y.SO.CEREALZ

The house

Y.SO.CEREALZ

Seoul

It's okay to make mistakes — Seoul streetwear with a message

Y.SO.CEREALZ (Why So Cerealz?) is a Seoul street label operated by TG&Co. under Kitae Son, with a showroom on Jahamun-ro in Jongno. Taking off from the biblical parable of the buried talent, its message is that mistakes are not failure but a step toward success — so hey, why so serious? The brand showed at Seoul Fashion Week for the 2024 S/S and F/W seasons and releases collaborations with artists such as Mothfly, Chanan and Inkyoung.

Discover the house
Whose House Is This? Sweatshirt — view 1
Whose House Is This? Sweatshirt — view 2
Whose House Is This? Sweatshirt — view 3
Whose House Is This? Sweatshirt — view 4
Whose House Is This? Sweatshirt — view 5
Whose House Is This? Sweatshirt — view 6
Whose House Is This? Sweatshirt — view 7
Whose House Is This? Sweatshirt — view 8
Whose House Is This? Sweatshirt — view 9
Whose House Is This? Sweatshirt — view 10
Whose House Is This? Sweatshirt — view 11
Whose House Is This? Sweatshirt — view 12
Y.SO.CEREALZ

Whose House Is This? Sweatshirt

105 € (US$109.09)

Final price may vary based on current exchange rates.

Taxes and duties included

Whose House Is This? Sweatshirt — a top from Y.SO.CEREALZ's Seoul street collection.

Size

Free returns within 14 days

Fit & details+

A sweatshirt from the Ysocerealz Seoul street collection.

Material & care+

Fabric composition not specified by the maker.

Shipping & returns+

Shipped from Seoul — 5–8 business days.

Free returns within 14 days, in line with your right of withdrawal.

Read the full return & refund policy

Taxes & duties+

Taxes and customs duties included — no fees on delivery.

The house

Y.SO.CEREALZ

Seoul

It's okay to make mistakes — Seoul streetwear with a message

Y.SO.CEREALZ (Why So Cerealz?) is a Seoul street label operated by TG&Co. under Kitae Son, with a showroom on Jahamun-ro in Jongno. Taking off from the biblical parable of the buried talent, its message is that mistakes are not failure but a step toward success — so hey, why so serious? The brand showed at Seoul Fashion Week for the 2024 S/S and F/W seasons and releases collaborations with artists such as Mothfly, Chanan and Inkyoung.

Discover the house

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Reconstitution of space Shirt

Y.SO.CEREALZ

Reconstitution of space Shirt

195 € (US$205.59)
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Moon Face Sweatshirt (inkyoung)

110 € (US$117.48)
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Let’s Get Along Hoodie

110 € (US$115.38)
Moon Phase Zip-up Hoodie (Chanan & inkyoung)

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Moon Phase Zip-up Hoodie (Chanan & inkyoung)

170 € (US$179.02)
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Y.SO.CEREALZ

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75 € (US$80.42)
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170 € (US$179.02)
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3/4 Raglan Rainbow Coat

485 € (US$506.99)
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100 € (US$103.50)
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130 € (US$136.36)
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Shepherd’s Rainbow Coat

485 € (US$506.99)
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Y.SO.CEREALZ

Fountain of Youth track jersey (Chanan & inkyoung)

170 € (US$179.02)
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Tailored Pea-Coat

415 € (US$437.06)
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Rugged Sweat Short Sleeve T-Shirt [Blue Green]

ADLIELOS

Rugged Sweat Short Sleeve T-Shirt [Blue Green]

120 €−50%60 € (US$62.24)
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Stripe Mixed Knit Sweater [CAMEL]

15 € (US$13.29)
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Sleeveless Knit Top, Grey Beige

95 €−21%75 € (US$77.76)
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Relaxed Collar Terry Tee (Navy)

50 €−20%40 € (US$43.64)
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130 € (US$137.76)
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240 € (US$250.35)
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