Prince William's go-to outfit for public appearance is a tailored navy suit with a deep red tie and classic white oxford shirt. This preppy playsuit would suit the royal baby nicely when out with his posh parents.
To watch his athletic dad play polo, the little prince could sport this cozy onesie by Ralph Lauren. He's bound to bring his papa some good luck in this adorable outfit.
We rarely see the Duke of Cambridge dressed casually, but when he does, we warmly embrace it! A green plaid shirt and worn-in denim makes for the cutest royal cowboy look we've ever seen! The mini-me version comes with overalls for maximum crawling opportunities.
What's a baby to wear at a black tie event? A miniature tuxedo, of course! The little heir to the throne will look just like his handsome daddy in this clever onesie from Marshall's.
Prince William embraces his classic sense of style in crisp button-down shirts that never go out of style. This baby-sized version would coordinate perfectly.
The royal baby should take a cue from his fashionable father with this distinguished ensemble. A simple gray vest can add a touch of panache to any formal look.
NEXT GALLERY: Post-pregnancy fashion predictions for Kate Middleton