One of the biggest sartorial shifts between the comics and film versions of the X-Men series came by way of Wolverine (who's been played a whopping eight times, and counting, by Hugh Jackman). In the comics, Logan is clad in a color-blocked suit (usually with yellow and black or blue) with sharp ears on the cowl and a thick belt bearing the X-Men emblem. Sure, he went shirtless from time to time, because biceps like those can't always be kept undercover, but the movies have almost completely ignored the option of having Wolverine wear superhero garb and instead seem to showcase as much of Hugh Jackman's birthday suit as a PG-13 rating will allow.
One deleted scene from 2013's The Wolverine did cruelly tease Logan's possible future with the classic suit, but director James Mangold decided to scrap the scene (and costume option) from his film, explaining that Jackman's screen version of Logan just doesn't jibe with that sort of flashy gear. "Finding the rationale for a uniform when the character disdains self-promotion, why he would put on some outfit that promotes himself as some kind of hero? It's like Dirty Harry didn't walk around with a special outfit," he explained. "He's not a showoff. He's the last one to put on a team jersey." Fair enough.