MCU X-Men: 10 Costumes Marvel MUST Use
1. Wolverine - The Classic Brown Costume
Fans asked for it. Fox knew about it. And The Wolverine delivered it. (In a deleted scene.)
Say what you will about the logistics of bringing Wolverine's classic brown and tan costume to the big screen, but it's just way overdue. The MCU has thankfully managed to make superhero costumes a thing to be championed and not ashamed of in live action, and given Wolverine literally has one of the coolest outfits in Marvel history, it's about time it made the leap from page to screen.
The helmet doesn't necessarily have to even be there either. Just make sure that it isn't an uninspiring leather garb, take cues from Frank Miller's stint on the character, and go from there. There are plenty of ways to apply that concept to the modern day, and given the sheer array of fan art online that has imagined what Logan's classic outfit could look like on screen, there's no reason why Marvel couldn't put it into practice.
It's the greatest costume in all X-Men history. Were it not to appear in the team's second reimagining, then Marvel will be making a needless mistake.