The Extremis Soldier has dark brown hair. His head is glow-in-the-dark and is double sided, one side depicting a serious expression and the other with an angry expression. The first side has black eyes and light grey cheekbones with a serious expression, while the second has red eyes with red veins and cheekbones. The torso and arms are dark stone grey with black hands, hips and legs. The torso is printed with the muscles cut on the shirt that has a zipper, the collar, stitch lines near the arms, and red lines depicting designs all over the shirt. He has back printing depicting the back of the shirt, the muscles cut on his back, the red lines, the collar and arm stitches from the front.
- He is one of the two Super Heroes minifigures to have a glow-in-the-dark head; the other is Aldrich Killian.
- Eric Savin was called the Extremis Soldier to avoid spoilers of what happened to Savin before Iron Man 3 was released, similar to the Alien Foot Soldier and Alien General.
- In Iron Man 3, Eric Savin is played by James Badge Dale, who also plays Dan Reid in The Lone Ranger.