John Isner opens the new year wearing a familiar brand.

Isner has signed a multi-year apparel and shoe contract with Fila after ending his four-year partnership with Lacoste. Financial terms of the deal were not disclosed.

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The brand released this image of the Fila Heritage apparel the American No. 1 will wear in Australia.

"Fila has such a celebrated heritage in tennis and I am excited to begin my partnership with the brand," said Isner. "I have long admired and respected Fila and it’s an honor to join the legends of the game who have worn Fila on-court."

Isner inked a four-year endorsement deal with Lacoste in January of 2012 that reportedly paid him in the mid six figures annually. That contract expired at the end of December.

Prior to signing with Lacoste, Isner wore Nike going back to his days as an all American at Georgia.

Photo credit: Fila