"Captain America: Civil War" concept artist Jerad S. Marantz has revealed some never-before-seen designs for Chadwick Boseman's Black Panther -- revealing some alternate designs for the character's costume in his cinematic debut.

"I had the honor of doing some early passes on the Black Panther while working in-house at Marvel with their amazing Visual Development team," Marantz wrote on his blog. "It was a great project and ended up being one of my favorite Marvel Movies."

The designs reveal a more musculature-type suit for T'Challa, sort of like Ryan Reynolds' Green Lantern costume, that inevitably didn't make it into the film.

Check out the Black Panther concept art below:

Boseman's Black Panther is set to appear next in his own solo film -- directed by "Creed's" Ryan Coogler -- hitting theaters on February 16, 2018.