8. The Flash (2014 TV series' third suit)
Worn by: Grant Gustin (and Stephen Amell in Elseworlds)
The CW's The Flash series has produced some of the Scarlet Speedster's very best looks (which is something that you'll see very shortly on this list), but its third attempt wasn't one of them.
The suit infamous for completely changing the design that had become a fixture for speedster uniforms in the Arrowverse, this one debuted in The Flash season 5 and was supposed to be seen as an in-universe upgrade to the previous outfits. But it wasn't fooling anyone, for its felt-like texture made the person wearing it look far more vulnerable. It also lacked the necessary padding for a superhero suit, which meant that it clung far too tightly to both Grant Gustin and Stephen Amell whenever they wore it. The lack of a chinstrap was also a big "no" from fans.
The biggest issue with it was the cowl, which was now made from a completely different material than the rest of the suit, meaning that there was no kind of synergy between them. It was also oversized, looking more like a helmet than a cowl, and that also went a long way in making the suit itself look smaller than it needed to.
While The Flash season 5's suit was a necessary piece in the journey towards the beloved season 6 suit, it's one that ultimately felt like a major step backwards from the iconic suits seen in the first four seasons.