Around 2049, the ring was taken by Nora West-Allen, who gave it to her father, Barry Allen, when she traveled back to 2018. Barry then began using the suit that was stored inside the ring when he operated in the field as the Flash. Cisco Ramon initially had trouble figuring out how to get the suit to return into the ring, but he eventually succeeded.
Barry decides to disobey Amunet Black's order about following her in a "onesie" and pulls out his Flash ring; "Iris" sees the ring and reminds Barry of the order, to his dislike that the Flash suit was called that.
- Storage: The Flash ring acts as a storage unit for the sixteenth iteration of the Flash suit, instead of "having to carry around a bag all the time". It is unknown how the ring achieves this, though it's possible that it uses some form of nanites/nano/micro-technology as past conversations on the development of such a ring would likely use such. It was later used to store the fifth iteration of the suit.
- It is unknown why the Flash suit was constantly placed on the mannequin in the cortex even though Cisco figured out how to put the suit in the ring.
- Back in the Season 2 episode "", Barry asked Harry Wells and Cisco Ramon to try and reverse engineer the Reverse-Flash ring to make a Flash ring for Barry to transport his suit more easily, which was never followed up on.
Behind the scenes
- In the DC comics, the Flash's costume ring allows a speedster to conceal their costume and quickly change in/out of their suit. It was used by Barry Allen and his grandson, Bart Allen.
- In the comics The Flash (Volume 1) #259, The Flash has shown the ability to vibrate and compress his molecules to actually hide himself inside of the ring when the situation calls for it.