Originally Posted by DN91
Looking a bit closer at what he's wearing, I don't think it's the main outfit, but rather one he uses for spy missions. In essence, I think that's the MCU version of Cap's Super-Soldier suit from the comics (if we're going by the fingerless gloves being worn in the image).
That's exactly the first thing I thought when I noticed his gloves. I didn't think they'd go with the SS angle so soon but I don't mind.