The New Balance 1540v3 'Marblehead' is a performance running shoe that combines breathability and support. Its reinforced upper is made of airy grey mesh with tonal synthetic suede overlays, while pops of bright blue can be found on the signature 'N' logo, interior tongue, and 1540v3 branding on the lateral heel. The shoe features responsive cushioning with an ENCAP midsole consisting of two layers of foam, complemented by a TPU rollbar under the heel for added support.