Best Tucking Outfit?

A good tucking outfit is really anything that's not thick, colourful, or glowing which excludes alot of curses as well so if you really wanna sacrifice style for advantage the just wear a basic all black shirt and pant from the shop. Side note I recommend focusing more on hiding spots and knowing when to move to a hiding spot over what you're wearing.

Anything works as long as you know good spots, have a small to medium pirate, avoid bright colors and large cosmetics you are fine.

If you want to present yourself as the widely known image however.
-Beanpole Pirate
-Dark Hair
-Midnight Blade Mask
-Dark Facepaint
-Midnight Blade, Black Majestic Sovereign Shirt or Dawn Hunter Clothing.
-No Boots or Pegs.
-Blame your crew and leave when you are found behind the brigs Voyage table/Gally captain chair.

It doesnt matter as much as some people think, but most people just go for every solid black item they can find. You only need to watch one of hitbos older podcasts to realize its not such a big deal considering they tucked with the brightest outfit there is.

Definition of a Tucking Outfit: “An outfit with dark colors; doesn’t attract any attention.” Wear dark clothing that doesn't glimmer or glows