Several articles on the Internet (based on an interview in Empire Magazine) quoted the costume designer mentioning CAT, G-Star, and McDavid.
But, for Daredevil's black costume I think: McDavid, definitely yes. CAT, no (Bates). and perhaps a custom-tailored G-Star for one of the pant styles?
If you note in various scenes, he's wearing a slightly different black costume, which is probably why *the* pants are still unconfirmed. Looking at reference photos, there seems to be a version of these pants with zippers in the front, upper thigh area... I've done some research last month and ended up here:
https://www.g-star.com/en_us/collection/men/pants?p_maincolor={id2080842}&p_style={id64878492} Paying attention to the front and side pockets, some of the style elements are there, and it's possible that *a* screen accurate one could have been a discontinued version of G-Star and/or a custom-tailored one based off one of these models. Thoughts?
Edited to add some articles:
http://fashionista.com/2015/04/daredevil-costume-design
Quote:
So what is he actually wearing for his initial outfit — are those cargo pants or was the outfit custom made?
I really wanted to put myself in his shoes and figure out where he would go. So I went to army/navy stores. I went online. I looked at athletic clothing, compression clothing, military stuff and construction stuff. I looked at everything, and we tried a lot of things. I even looked at fashion stuff: G-Star, Nike, Diesel, but we wound up with pretty practical choices for him. His shirts are compression shirts and his pants wound up being from an army/navy store. I think they might have been construction pants. If I were going to be in Matt’s head, I’d say to myself, "I need something that’s practical, that’s functional, that I can move in, that's utilitarian. I want to put stuff in my pockets." He ultimately had those sticks and he had to put those in his pockets and he had his mask — he had to have some place to put that.
Also:
http://www.darkhorizons.com/news/35991/-daredevil-costume-design-violence-talk