zmurda:
You are right and I agree. Of course it is "tested", every fabric dye lot is tested. It is supposedly tested before it leaves the dye house and yet again before it goes into sewing.
The companies do test their fabrics, even the smaller ones that I have worked for test their fabrics quite bit.
But all those companies work with fabric mills to "develop" fabrics. Which means the fabric mills bring stuff to them so they choose it to incorporate it or the private label supplier does that and then presents those companies with a good that they buy, usually after some minor tweaking that they call design and development. Nike really does do quite a bit of design and development and Adidas does to a degree. UA, not so much they depend on outside suppliers much more so.
In terms of "performance fabric" that stuff has been around forever. I sewed "performance fabric" for Russell Athletic before it was ever called that. All this hyped stuff is basically a variation in thread counts, knit procedures, dyeing and finishing (hand), and elatic(elastaine) content on what we used to call Lycra in the 80's.
Now, in terms of wicking/moisture mangement and antimicrobial stuff it gets interesting. Most of this fabric is polyester, well how many germs really can find a home in polyester that is derived from oil? Not many. Add some chemicals that stay fast for a while to the finish and waalaa you have anti-microbial. Moisture management is something that has been explained to me like 25 times, and I work in this industry, and I still don't get it.
The company I used to work for, Badger Sportswear was the largest vendor to Adidas for years in this hemisphere and did a roaring business with UA, unfortunantely, also. At the same time it/we developed our own products to compete with those companies, and eventually the owner of the company "fired" both of them as they were too hard and cheap to deal with. He is now much, much more succesful than before. You can buy Badger Sportswear's version of a performance shirt for 40% less than UA, and it is made the same with fabric that comes out of many of the same mills that UA uses.
The supplier that got UA into the big volume business got dropped eventually, but switched their experience and ability to supplying Wal-Mart in performance stuff and they still do.
All that dry fit stuff that people wear nowadays. Go back and compare it to a liesure suit from the 70's. At the base level it is the same, with just different knitting, some of it Warp, techniques and different finished and colors.
All those companies test their garments for durability and such. The "flatlock" stitching that UA made so popular has been around since christ was a corporal and was most commonly used on thermal underwear and some other applications where you did not want a seam, either covered or not. It is not any stronger or any better than a serged seam with coverstiching or a mock safety stitch.
In essence what I am trying to say is that there is very little innovation in the garment business, aside from in marketing. What does exist is lots of "re-inventing" of tried and true techniques and re-naming of things.
Just an FYI, we would test fabric we would get from Asian mills religiously. Lots of it failed. One of the things the Asians do, some not all, is find a roll of fabric of a selected color and always use that in the pre-production testing that is done. It was amazing that we would get the exact same results from a fabric time and time again. Lots of interesting stuff goes on in this, my, business. But it is not nearly as high tech and innovative as companies like UA or even Nike want folks to believe.
Fabrics are basically commodities, the more and better it is, the more expensive it is.
If I ever buy workout or athletic stuff I always buy Russell as they do quite a bit of their own manufacturing and are very dilligent in their QC and other methods. You get way more bang for your buck with Russell and some other less known labels.
Just my $0.02 about something I do know about. I am now out of that end of the business and glad to be so. It is not that interesting to me anymore and way too many personalities in it.