Cisco Ramon makes the iconic Flash suit.
As a co-leader of Team Flash and mechanical engineering genius, Cisco Ramon (AKA Vibe), creates the suit that the Flash wears. The suit Ramon designed can withstand the Flash's super speed, and has the ability to monitor his vitals and energy output. In the comics, Barry makes his own costume (not to copy the original flash, but of his own design) and treats the costume with chemicals of his own concoction that, when combined with electricity, allows the suit to shrink into a ring.