Dover Street Market joined forces with Ronnie Fieg and New Balance to release an exclusive colorway of the 574 Sport. The Ronnie Fieg x Dover Street Market x 574 Sport 'Grey' features a nubuck upper in grey with perforations on the toe box and collar. The sneaker also boasts interchangeable velcro “N” patches on the sides that alternate between leather, nubuck, and reflective.