August 10, 2016 11:59 PM

At 3 months old, Boomer Robert Phelps is already dressing for success – his dad’s success.

The infant, swimmer Michael Phelps‘ son with fiancée Nicole Johnson, was decked out in full Team USA-inspired garb for Rio’s fifth day of competition.

In a snap posted to his own, personal Instagram, Boomer modeled a precious pair of red, white and blue shorts with a white onesie, which featured a flag-waving smiley face cheering “Team Daddy!” – a look he first debuted at the Olympic trials.

Instagram

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Phelps’ now-21 gold medals even got a nod with Boomer’s shiny gold Freshly Picked baby booties, from the brand’s Go for Gold collection.

“Way to go daddy!!!!” the adorable image was captioned. “#usa #rio2016 #pantsonfleek.”

RELATED: See what other moms remember most about seeing their loved ones win at the Olympics

Johnson and Boomer were in the stands to watch Phelps, 31, earn the gold in Tuesday’s 4×200 men’s relay, and, earlier, in the men’s 200-meter butterfly.

The swimmer still has several events left, including qualifiers for the men’s 100-meter butterfly on Thursday.

–– Lindsay Kimble

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