The partnership with Unilever-owned Dove Men+Care will see the brand feature prominently throughout the Millennium Stadium on match day, as it steps up its support of rugby union.
The sponsorship will also benefit rugby fans attending the game with a range of free samples available to showcase the Dove Men+Care range, which delivers superior care for total skin comfort across both shower and deodorant categories.
WRU Head of Sales and Marketing Craig Maxwell: "I'm delighted to announce the renewed and extended contract with renowned Unilever brand Dove Men+Care for Wales' upcoming game against Australia at the Millennium Stadium.
"Following the initial short-term partnership during the summer series campaign, the new deal confirms the WRU's status as a successful and reputable brand and we are looking forward to partnering with Dove Men+Care for the future.
He added: "Already we are exploring the obvious synergy between the brands and the potential incentives and opportunities for our fans and the Wales squad throughout the partnership."
Brand Manager for Dove Men+Care, Paul O'Connor, added: "As a brand which combines powerful technology and care, Dove Men+Care makes a natural partner for rugby and the WRU partnership only serves to cement our commitment to the sport."
The Wales v Australia Clash will be televised on BBC network television and fans can still get seated tickets and hospitality packages to be part of the Millennium Stadium action.
A range of ticket prices are available from the WRU website, by calling the ticket hotlines 08442 777 888 or 02920 230130 and at the WRU Store, 8 Westgate Street, Cardiff. Tickets are also available at a range of local Tesco stores priced at £50.
Hospitality packages starting from £219 for Wales v Australia are available via the Millennium Stadium website: www.millenniumstadium.com