Fashion and endorsements Together with bandmate and fellow DanceRacha member
Lee Know, Hyunjin featured in the April 2020 issue of
Arena Homme+ Korea. He was featured again in the magazine's February 2021 issue, alongside bandmate
Felix, also part of Stray Kids' dance line. In 2021, Hyunjin, Lee Know, and Felix endorsed the Earthbeat sneaker for
Etro. On August 31, 2022, together with bandmate Felix, Hyunjin attended the
Tod's Seoul event at Loop Station Iksun. in support of endorsing the brand in
W Korea. In May 2024, he made his
Met Gala debut with
Stray Kids as guests of
Tommy Hilfiger, making them the first K-pop group to attend together wearing custom outfits by the same designer.
Versace ambassadorship On September 5, 2022, Hyunjin and
Felix attended the
YSL Beauty X
Dua Lipa event in Paris. In May 2023, following his meeting with Lipa, Hyunjin subsequently became one of 60 guests invited to
Cannes for Dua Lipa's debut fashion show, "La Vacanza", a collaboration with
Versace. In July 2023, he also attended the opening of Versace's "La Vacanza" pop-up store in Seoul. Later that month, Hyunjin was announced as a global brand ambassador for Versace, making him the first South Korean and Asian male ambassador for the brand. The partnership led to Versace designing multiple bespoke pieces for him, including outfits he wore to perform with Stray Kids at the
2023 VMAs,
Lollapalooza Paris, and the band's
5-Star Dome Tour. Hyunjin has also featured Versace designs in Stray Kids' music videos, including "
S-Class". In 2024, the brand provided Hyunjin with custom outfits for Stray Kids'
Dominate World Tour. He was the face of Versace's Holiday 2023 advertising campaign. After a minor car accident delayed a planned appearance in September 2023, In September 2024, he attended his second Milan Fashion Week, participating in the showcase for Versace's spring-summer 2025 collection.
Cartier ambassadorship In June 2023, Hyunjin modelled for
Cartier as the cover star of
Esquire Korea. He modelled for the brand again in May 2024, as the cover model for
Elle Korea. In September 2024, Hyunjin was announced as a brand ambassador for Cartier, with a modeling feature for the brand in the October 2024 issue of
Esquire Korea.
Givenchy Beauty ambassadorship In February 2025, Hyunjin was announced as an ambassador for
Givenchy Beauty, with a modeling feature for the brand in the March 2025 issue of
Marie Claire Korea.
Guess ambassadorship In March 2026, American clothing brand
Guess appointed Hyunjin to be a global ambassador.
Philanthropy On February 16, 2023, it was reported that Hyunjin donated through the
international relief organization, The Promise, to aid the relief efforts following the
earthquake in Turkey and Syria. His contributions made him appointed as a member of the honors club on March 30. In November 2023, he participated in a fundraising event for the "Love Your W" campaign by
W Korea to raise awareness about breast cancer. In 2024, to celebrate his birthday, he donated to the Snail of Love, a social welfare organization that provides hearing-impaired people with artificial cochlear surgery and hearing aids to help them find sound, supports social adaptation of hearing children, and provides education to improve public awareness. Hyunjin donated to
Samsung Medical Center on his birthday, March 20, 2025. The donation he made will be used to cover the treatment costs of children and adolescent patients receiving treatment at Samsung Medical Center as well as emotional support activities to help them achieve psychological stability. ==Personal life==