i hate fiance's suit choice and didn't know if i should tell him

He mentioned wanting to wear his pinstripe suit. He has no idea I hate pinstripe suits. I think they look terrible on anyone younger than my grandpa, and anyone who isn't playing a character. Pinstripe suits make me think of old timey mobsters, 1980's walstreet, pimps, and clowns.


The last time I saw this pinstripe suit was when we first started dating and he wanted to show off how well he cleans up. I awkwardly smiled and went, "Oh yeah, you look great!" because I didn't know him well enough yet and there was no sense in hurting his feelings when committing to a relationship was the furthest thing from my mind at the time.
Fast forward to today. I am madly in love with this guy and I accept the vast majority of his goofy fashion choices. I felt a slight twinge of embarrassment when he wore a skin-tight spandex superman shirt and khaki pants for meeting my parents for the first time, but I quickly got over that and had a great time. But that feeling I had is nothing compared to the twisting in my gut I feel about the pinstripe suit at our wedding. I'd rather hole-y jeans and tux-printed t-shirt, because at least that might be funny. I don't know why I feel so strongly about this and I don't know if I can let it go. I feel bad for not being honest with him about my opinion on the suit the first time I saw it. I'm wondering if I should come clean about it or if I should just smile through my own cringe because he loves the suit.