An effortlessly polished twofer, the Rida sweater features a luxe cotton-cashmere knit with attached crisp poplin shirting. An effortlessly polished twofer, the Rida sweater features a luxe cotton-cashmere knit with attached crisp poplin shirting. Named after the original NYC flagship store address, Derek Lam launched Derek Lam 10 Crosby in 2011 to elevate and transform everyday style through fit, form, fabric, color, and attitude.