Sanji uses friction to heat his legs up, which is just enough of an explanation to be acceptable. However, there's no reason he should be able to withstand the heat of his own flames.

Sanji is the crew's cook and a strong fighter with unique abilities, like cooking nutritious meals and fighting using only his legs. He can withstand strong attacks due to his genetic enhancements ...

Sanji’s legs now burn as hot as a fire demon, essentially turning Black Leg into something of an ifrit himself. One Piece Chapter 1034 does a great job of introducing this powerup in an organic ...

Easy as it may look, Sanji’s fighting style, called the Black Leg Style handed down to him by Zeff, is not only incredibly challenging to pull off but also very taxing on the body as Skylar ...

Sanji's strength definitely shouldn't be downplayed by One Piece fans, ... Whether it's his Observation Haki or his Black Leg Style techniques, he is a force to be reckoned with.

Discover why Toei Animation’s portrayal of Sanji in 'One Piece' has sparked fan outrage. From fight changes to smoking controversies, here’s the full story.

While Sanji might be one of the greatest chefs in the Grand Line, the member of the Straw Hat Pirates also is an adept fighter who lets his legs do the talking when it comes to the epic battles ...

Netflix’s One Piece live-action series has its best arc at Baratie, and while it’s still not as good as the manga’s, it is a great example of what makes the show work.