Endorsements and fashion
As the rookie actor Lee Dong-min, he was selected as model for Korean cosmetics brand Shara Shara in 2014. In January 2017, Cha was chosen as exclusive model for the shoe brand Bluemountain Korea. In February, Cha was chosen as advertising model for the French outdoor clothing brand Lafuma. In April, he was selected as promotional model for Clearteen, a dermatological line from the South Korean pharmaceutical company Handok. In May, Cha become an advertising model for the ice cream brand Baskin-Robbins. In June, Cha was chosen as promotional model for Lotte Water Park. In August, he was selected as a promotional model for POLHAM. In October, Cha was chosen as an advertising model for Nongshim pretzel.
In January 2018, Cha was selected as the model for Aritaum's Angel Kiss Tint, from the South Korean beauty and cosmetics brand Amorepacific. In July, Cha was chosen as new TV commercial model for "EyeBon", an eye care product line by Dong-A Pharmaceutical. In October, Cha was chosen as the first muse for the street fashion brand BMS (Be My Self). Additionally, Cha became the muse for Atelier Cologne, and was selected as advertising model for Kellogg's Hershey Choco Crunch cereal. In December, Cha became the advertising model for Goobne Chicken, and a brand ambassador for Italian luxury fashion house Armani's watches. In January 2019, Cha was selected as a promotional model for the American luggage brand Samsonite's Red line. In March, he was announced as the promotional model for LG Uplus' 5G, and became the muse for American footwear and sports brand K-Swiss. In June, Cha was appointed as a new promotional model for Samsung Card. In August, Cha was selected as an advertising model for beauty brand Liz K. In October, he became the new face of beauty device company Unix Electronics.
In January 2020, Cha became a brand ambassador for South Korean cosmeceutical brand BRTC (Bio Remedies Therapeutic Cosmetics) in China. In February, Cha was appointed an official model for Australian/New Zealand multinational brand sportswear brand 2XU. In December, he was named the global face of Filipino beauty and health brand Frontrow. In January 2021, Cha was chosen as advertising model for Dong-A Pharmaceutical's derma cosmetics brand, Fation. In February, Cha became Penshoppe's international ambassador. In March, he was selected as the brand model for Noona Holdak Chicken. In May, Cha was chosen as a new model for clothing brand O'Neill. In July, Cha became a global brand ambassador for the British luxury fashion house Burberry, was chosen as the first Konvy's presenter, as well as advertising model for Mackiss Company's Now We Are soju, and for Nunen Chazuki under the Korean premium eye health brand '2.0 Recipe'. In August, Cha was selected as advertising model for Samhwa Foods, and the new muse of Dashu Perfume. In January 2022, Cha became the muse for the hair styling brand Dashu. The next two months, he became new brand ambassador for Ms Glow and Mister Potato. In April 2022, Cha was selected as a model for contemporary men's clothing brand Liberclassy. In June, Cha became a brand ambassador for Dior Beauty, announced after attending Jean-Michel Othoniel's exhibition. In December, Cha was officially announced as a brand ambassador for Dior.
In January 2023, Cha became a regional brand ambassador for the American multinational footwear and apparel brand Skechers. In February, Cha and actress Han So-hee were selected as CF models together for global clothing brand Giordano. Cha launches the global campaign 2023 New Liens collection Liens Evidence. In March, Cha became a brand ambassador for Est Cola. Cha became a brand ambassador for Dunkin' Philippines. In June, Cha also became a brand ambassador for Skechers in Indonesia, and was selected as a brand ambassador for Subway. In August, Cha has been selected as promotional model for Chung Jungwon Home:ings. Cha has been selected as the new brand ambassador for outdoor brand The North Face. In October, Cha has been selected as the new brand ambassador for Ricola. Cha is also announced as the face of the insurance company Hanwha Life.
In January 2024, Cha became a brand ambassador for Cornetto in Southeast Asia. In February, Cha has been selected as the new brand ambassador for Milo Thailand. In March, Cha has been selected as advertising model for Sprite. In August, Cha has been selected as the new brand ambassador for Nescafé in Hong Kong and Macau. Cha was also announced as the new brand ambassador for Healthcare robot company Bodyfriend. In September, Cha was selected as the new face of the global campaign for Calvin Klein's Fall 2024 menswear collections, including the Calvin Klein Studio line. He has also been announced as the advertising model for LG Uplus' AX. Cha became the global ambassador for the French luxury jewellery and watch house Chaumet, and was chosen as an ambassador for the French luxury fashion house Saint Laurent. In October, Cha became a brand ambassador for the American fashion brand Calvin Klein. He has been selected as the exclusive advertising model for Norang Tongdak chicken. In November, Digital Daesung's MiMac Study e-learning brand appoints Cha as its new promotional model.
In February 2025, Cha was chosen as the new advertising model for Shinhan Financial Group's Shinhan Bank. In March, Cha became a brand ambassador for international clothing brand Marithé et François Girbaud. On August 29, he was appointed as the global brand ambassador for the Korean cosmetics brand Abib.