29 October 2026International edition
Vol. I · No.
29 October 2026
AI IN FASHION
DAILY
The daily briefing on AI in the fashion business
Where fashion meets artificial intelligence.
Lingerie, swimwear and hosiery

BYC

BYC Co., Ltd. · South Korea

BYC is a South Korean underwear brand and company based in Seoul, formerly known as BaekYang Corporation. It makes underwear, running shirts, thermal wear and stockings and is listed on the Korea Exchange.

Facts
Former nameBaekYang Corporation
HeadquartersSeoul, South Korea
ListingKorea Exchange
ProductsUnderwear, thermal wear, stockings
Websitebyc.co.kr
Segment
Value
Categories
LingerieMenswearWomenswear
Sales channels
Own storesWholesale

What is BYC?

BYC is one of South Korea's longest established underwear brands. The company, BYC Co., Ltd., is based in Seoul and is described as Korea's first underwear manufacturer.

History

The company was formerly known as BaekYang Corporation, from the Korean name 백양 (Baegyang), before adopting the BYC name. It is listed on the Korea Exchange.

Products and positioning

BYC's range covers everyday basics for men and women:

  • Underwear
  • Running shirts
  • Thermal wear
  • Stockings and hosiery

As both manufacturer and brand, BYC covers the core of everyday innerwear and legwear, from basic underwear and sleeveless running shirts to thermal layers and stockings, rather than fashion-led lingerie.

Distribution

Beyond its domestic market, BYC has exported to the United States, Canada, Japan, Europe and the Asia Pacific region. Its listing on the Korea Exchange makes it one of the publicly traded names in Korean apparel.

Why it matters

BYC is a long-standing reference brand for Korean basics and innerwear, a category in which domestic heritage names compete with fast-growing global and online players.

Frequently asked questions

What does BYC stand for?

BYC comes from the company's former name, BaekYang Corporation.

What does BYC sell?

BYC sells underwear, running shirts, thermal wear and stockings.

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