Curiosity Note
The word briny does a lot of work in a pirate story.
It suggests salt air, wet ropes, noisy gulls, and a small captain insisting the map is definitely not upside down.
This child costume is for Halloween, play, school events, parties, and photographs where ordinary clothes would have spoiled the voyage.
It gives the wearer a character quickly, which is the whole magic of dress-up.
The adventure can stay pretend while the confidence becomes very real.