Sadie Sink starred in the 'This is Le Rouge Deep Velvet' campaign for Givenchy Beauty, which launched various shades of the Le Rouge Deep Velvet lipstick in March 2021.

Sadie Sink acted as a Prada Ambassador and attended the Spring/Summer 2026 Womenswear Show in Milan in September 2025. She was featured in an exclusive video that showcased the clothing philosophy and pre-show rituals of Prada.

Sadie Sink was named global ambassador for Armani Beauty in July 2023, and will star in campaigns for Sì Eau de Parfum Intense alongside Cate Blanchett, embodying the essence of makeup in the brand's upcoming promotions.

Sadie Sink has collaborated with Chanel since 2017, starting when the brand dressed her for her first premiere of 'Stranger Things.' This moment marked her initial entry into high fashion, sparking her interest in 'the art of fashion in general.'