They are co-designed by the anime staff and Japanese fast fashion manufacture Uniqlo’s T-shirts brand UT.
The One Piece franchise’s official portal site One Piece.com has posted visuals of the new “summer vacation” costumes that are worn by the nine members of the Straw Hat Pirates in the forthcoming 14th feature film ONE PIECE STAMPEDE.
You can check each character’s individual visual on One Piece.com. in Japan on August 9, 2019.