ABOUT DENIM & SUPPLY BY RALPH LAUREN. Working a laidback chic aesthetic, Denim & Supply by Ralph Lauren is the latest denim line from the Ralph Lauren family. Taking inspiration from the artist communities of Brooklyn, New York, Denim & Supply by Ralph Lauren teams soft marl t-shirts, bandana print vests and cable knit jumpers with fade-out denim and distressed skinny jeans, to channel a carefree vintage vibe. Main: 100% Jute