I can only speak for the iOrange cable, it is very high quality and meets the USB C spec. I made a quick video on it the other day that I posted here to give you an idea of what it's like.

Also, a company called F-Color is sending me a 2 Meter cable just like the iOrange to test in response to the video I made, I would only assume it's compliant given their confidence but we'll see when it comes in.