Not only did San Francisco 49ers quarterback Colin Kaepernick sign an enormous contract extension on Wednesday, he inked his deal in style.

Kaepernick, who led the 49ers to the Super Bowl in 2013 and to the NFC Championship game in January, signed a six-year extension with San Francisco that includes $61 million in guaranteed money. All told, the contract could be worth $126 million.

Following in the suit of some of his teammates, Kaepernick used a quill pen to put his signature on the contract:

But the pen wasn't the only bit of flair Kaepernick added to the big day. Kaepernick, known for his unique style, also wore socks featuring dollar bill prints.

Kaepernick told reporters the socks weren't planned and that it was simply a coincidence.

''To be honest, one of my friends gave them to me, gave me a box of socks,'' he said. ''No idea what brand or what company, but they were in my drawer.''

It seems the socks, like Kaepernick, were in the right place at the right time. After all, Kaepernick's star was born when he filled in for an injured Alex Smith in the middle of the 2012 season. After barely playing as a rookie in 2011, Kaepernick has gone 17-6 as a starter over the past two seasons.