On a few occasions, Spider-Man has altered his costume for specific purposes. He uses a very short-lived, silver-colored armored suit in Web of Spider-Man #100, developed at Empire State University Labs by the web-slinger. The armor severely impairs his natural agility, though it renders him highly resistant to high caliber bullets. However, the armor is soon destroyed by acid.

Basically I was in the process of creating that armored Spiderman from a Marvel Select Spiderman recently repaired. Anyways I started with painting all of the blue to a basic lamplight black. Before I painted the red silver, I noticed the similarity to the Red Lantern design and was going to make it into a Red Lantern. Ultimately I was inspired to finish the original project.