Sofia Alexandra Grainge (née Richie; born August 24, 1998) is an American social media personality and model.

She has been featured in campaigns by a number of major brands including Stuart Weitzman, Tommy Hilfiger, Michael Kors, and Adidas.

[7] Richie began modeling at age 14 with a feature in Teen Vogue[6] and at 15 she got her first fashion contract with Los Angeles–based swimwear company Mary Grace Swim.

[10] In 2014, Richie was featured on Who What Wear and NationAlist Magazine, and teamed up with Teen Vogue and Olay for that year's "Fresh to School" online campaign.

[11][12] Richie has since walked the runway for Chanel,[13] Jeremy Scott, Philipp Plein, Kanye West's Yeezy line, Samantha Thavasa and Dolce & Gabbana.

Richie has featured in advertising campaigns for a number of brands including DL1961,[14] Madonna's Material Girl line,[4] Jacquie Aiche,[15] Adidas,[16] Michael Kors,[17] PrettyLittleThing[18] and Tommy Hilfiger.

[39][40] Richie wants to eventually expand her collection into a fashion line and launch a beauty company focusing on hair and body.

[43] In July 2021, she created a capsule collection with 8 Other Reasons consisting of 61 pieces, including jewelry, anklets, bucket hats, tops, metal bags, rings, scarves and eyewear.

She has partnered with numerous brands, including Darya Hope, Lulus,[47] Suspicious Antwerp,[48] Nip + Fab,[49] Coca-Cola Zero Sugar, Cotton On and Cheetos.