Matt Olson made the switch from Under Armour to Nike for his cleats a few years ago when he was still playing for Oakland. Now in Atlanta, he is still rocking with Nike. Specifically, he’s got on the Alpha Huarache Elite 3 mids. Olson did not add any personalization or custom features to these. He is simply wearing the white and black stock version.
You can get these cleats at DicksSportingGoods.com for $76-$95, depending on which colorway you choose.