Does anyone remember when you were kids, and you played with superheroes, Star Trek, etc.? And not only did you play with them, you also created your own stories, and in turn, your own universes?
I think I've done that again using Superman and his outfits from the 21st century so far.
So far, we've had Smallville, the DCEU with Man of Steel, Batman v Superman, and the upcoming Justice League, and finally, we now have Supergirl. With those, I've sorta created a costume timeline in my head in a way that makes sense.
After the outfits worn in Smallville, from the red jacket/blue shirt combo to the black trenchcoat and later red leather jacket looks, you put in the SR suit afterwards as the first suit. Then it's there that I see the SG/SM suit replacing it as well as acting as a transitional design from the traditional classic to the modern-day classic, and that's where the DCEU suit comes in. I could see this as when Clark learns where he comes from, and where he gets the suit like he did in MOS.