"Officially signed to the Seattle Seahawks. I want to thank the Seahawks organization for this opportunity! & I want to thank my family and friends for their support every step of the way! #GoHawks," Foxx wrote, accompanied by a photo of the Seahawks logo.
The 5-foot-10, 177-pound Foxx was a 12-game starter for the Huskies last year, who also saw time at quarterback.
He finished the season with 716 all-purpose yards, including 30 catches for 384 yards and 23 carries for 203 yards. He contributed on special teams as well, returning 10 punts for 81 yards and three kicks for 48 yards.
Foxx's most productive year as a wideout came in 2013, when he made 43 grabs for 534 yards and two touchdowns.