Ant-Man Suit

The Ant-Man Suit was created by Hank Pym with Pym Particles.

History
It was the mantel of Ant-Man, owned by Hank Pym and passed down to Scott Lang. Hank had recruited Scott to assist him in their heist at Cross Technologies.

At some point after the heist, Pym and Lang upgrade the suit and was used by Scott during the Avengers' Civil War on Team Captain America. One of the new functions, allow the wearer to grow incredibly huge to distract Iron Man's team but was taken down by Iron Man, War Machine and Spider-Man.