Taylor Swift got engaged in the gorgeous @ralphlauren Striped Silk Blend Dress. Since it sold out, save it to a Checkmate Collection and we'll notify you as soon as it's back in Taylor Swift looked elegant in monochrome as she accepted a proposal from her boyfriend, Travis Kelce. Shop the striped Ralph Lauren piece at the link in the comments. Can you buy Taylor Swift's Ralph Lauren engagement dress Go Fish Digital Taylor Swift posted her engagement, and boom, the $398 Ralph Lauren dress she wore sold out within hours. That's the power of marketing. Instagram Amazon.com: Women's Sexy Backless Dress One Shoulder Maxi Elegant Ruched O Ring Sleeveless Evening Dress Formal Gown Cocktail Dress Black : Clothing, Shoes & Jewelry