Olympic gold medalist Michael Phelps has signed a multi-year endorsement deal with Under Armour, according to a report in USA Today.

Phelps already endorses Speedo swimear, but will endorse Under Armor’s non-swim related products, according to the report, which was attributed to Under Armour SVP Steve Battista. 

Phelps, 24, holds the record for most gold medals won in a single Olympic games with his 2008 haul of eight at the Beijing games of last year.