FREMANTLE has opted not to wear its traditional purple colours in its first Grand Final, having chosen its white clash jumper ahead of its home strip to face the Hawks at the MCG this Saturday.

AFL media relations manager Patrick Keane announced on Twitter on Sunday that as the higher-ranked club, Hawthorn had been given the right to wear its home jumper, shorts and socks.

Keane wrote the AFL had then decided Fremantle would wear white shorts, but had given the Dockers the option of wearing their home or clash jumper. 

Fremantle CEO Steve Rosich said that once the AFL decided Fremantle would be wearing white shorts in the Grand Final, the club opted to wear its clash strip in its entirety. 

"We are unable to wear purple shorts against Hawthorn, who the AFL has selected to the wear their home strip, which includes brown shorts," he said.

"As such, we are required to wear white shorts, which is in keeping with our white clash strip."

Fremantle wore its white clash strip when it last played the Hawks away, in round four this year at Launceston's Aurora Stadium. 

But the Dockers wore their purple jumper and white shorts when they played Geelong in round 14 this season at Simonds Stadium.

Fremantle won't be the first team to don a clash jumper in a Grand Final. St Kilda wore its clash jumper - with the exaggerated white stripe in the middle - in both the 2010 Grand Finals against Collingwood.