The flash has one of the greatest costume designs in comics. Carmine Infantino came up with a simple, sleek uniform that looks great in motion, and it has deservedly stood the test of time. When Wally West took over the mantle of The Flash, a few tweaks were made. The material was shinier and the eyes where whited out, but it was still close enough to the classic design for me. The latest revamp with the New 52 reboot was less successful in my eyes. I don't see what adding a chin strap and a whole bunch of unnecessary seams does besides make the suit look busy. The artists like to have the seams glow and crackle with energy when he uses his powers, but to me that usually looks messy and more like his abilities are based on electricity rather than speed.
You could tell that John Byrne was going for that sleek Silver Age type of designs with his uniforms for the members of Alpha Flight. Their cool, simple looks were very effective and have for the most part remained unaltered over three decades later.



















