Now, technically, this could also be said of Storm's and Banshee's "wings", since both had been seen to fly without them. So, for Peter, that brings up another element -- what does the uniform look like when he's not using his power? I'm guessing the black cloth returns, like his blue leggings, and if that's the case, the flared shoulders would be something of a radical departure from the others. And it's important to remember that these were supposed to be UNIFORMS, in the full sense of that word.

I think Wolverine's ferral stance and grin still stil gives him away even without the distinctive mask and claws. But if he were calmer then I think I might have more trouble recognizing him.

Coming back to the original question of names alone: I don't know if I would have recognized Wolverine from his blue and yellow costume when introduced. The "sharp" points in his mask and the blue tiger stripes might be an indicator of something ferral. But I could see me also mistaking Nightcrawler for Wolverine based on Kurt's beastly appearance.

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That's how Kirby drew the "buckle" in the earliest issues.

Note, especially, the corner symbol.

The X extending to the edge of the buckle shows up for the first time (at least deliberately!) in issue 26 -- about halfway thru, and with no internal reason or explanation. It stays that way in the next issue when the buckle and belt turn red for the first time.