The New Balance 990v6 Made in USA “Grey Day” is a colorway of the sixth version of the popular New Balance 990 model from the brand’s annual “Grey Day” collection. “Grey Day” celebrates New Balance’s history, particularly its famed “Grey” colorway series. Here, the company releases its 990v6 model in a design as part of the festivities. The shoe’s upper features a grey mesh base with navy suede and leather overlays. A navy “N” logo is found on both sides of the shoe.