I don’t think he really looks like he is dressed like Pan- Pan usually wears more natural looking clothes made out of leaves and such. But who knows?
Definitely not a traditional Pan look. I’m hoping they show some some evolution in Bae’s character during his time in Neverland though, which could involve various costumes.
Assuming this jacket is indeed a costume, I’ve decided I want it to have originally belonged to a young Killian, and when Hook teaches Bae to drive the ship, he decides he needs to look the part of a crew member, and that’s the only child sized clothing around, so Hook lets him wear and keep it.