Julia Roberts’ 20-year-old son Phinnaeus is showing off his skateboarding skills in a video shared by his cinematographer dad, Danny Moder. The clip, which Moder posted Aug. 4 on Instagram, shows a shirtless Phinnaeus soaring on his skateboard up to the top of a half-pipe, where he gets a bit of air before turning around, cruising up and down.

Julia Roberts and husband Danny Moder's 20-year-old son, Phinnaeus, is showing off his skateboarding skills. Moder shared rare video of his eldest son skateboarding shirtless in a skatepark