In July 2017, the Ronnie Fieg x Dover Street Market x 574 Sport 'Navy Special Box' was released, alongside the 'Grey Special Box' and 'Black Special Box' colorways, introducing the 574 Sport silhouette. This shoe takes the iconic New Balance 574 and enhances it with Fresh Foam midsole technology and a mesh inner that provides better lockdown. Drawing inspiration from the classic 574JN, this particular colorway showcases a navy premium nubuck upper, complemented by lighter blue perforated panels. The shoe also features asymmetrical co-branded insoles and offers additional lace options. As for Fieg's version, it includes custom packaging and interchangeable velcro 'N' logos, providing a choice of 28 different leather, nubuck, and 3M options.