One Piece: Why does Nami not wear a shirt?

Thanks to unique character designs and mannerisms, so many One Piece characters are memorable and iconic in their own way. The Straw Hat navigator Nami is no exception to this.

Nami (One Piece) - Wikipedia

Bounty Nami Wanted - One Piece T-Shirt by Aditya Sena - Pixels

One Piece Shirt Queen Nami – Cospicky

T Shirt One Piece Nami Sexy OMN1111

One Piece: Revealing the reason why Nami often wears sexually outfits

One Piece Hawaiian T-shirts - Nami Hawaiian Shirt IP0717

One Piece anime Zeus Nami shirt, hoodie, sweater and v-neck t-shirt

Nami One Piece Streetwear Zip Hoodie Jacket - Anime Ape

One piece of fandom — I also noticed he's wearing the circles like Nami

One Piece Poster - Wanted Nami Bounty – One Piece Gifts