Pablo, I can only comment on the two items I've seen at TK Maxx, and those items are, IMO, of the quality I stated; marginally better than Regatta or Trespass. Both items were soft shells. Neither used a recognisable fabric, so probably an 'own brand' fabric, I.e. badge-engineered from one of the fabric mills. They did not use YKK zips, and the zips they used were rather 'scratchy'.
I can't say that I've seen other mainstream manufacturers using 'Supra Tex'.
The design featured a pseudo-raglan sleeve, with a partial dart on the shoulder, which is never a very satisfactory idea, neither is a shoulder seam. It used a five-panel design, but the side panels were very narrow, and parallel, and thus served no functional purpose ( they might have been shaped to give a better-tailored fit).
It had some nice touches, such as a microfibre lining and rolled top to the collar (but this is likely to wear easily), and decent, large mesh lined pockets, although it used a hanging bag design, and three layers of mesh on one pocket to allow an internal pocket.
It did feature 'MHW Synchro' style dotted tape reinforcement in places, but it looked more for style than function, and I had concerns for the bond strength.
The face fabric felt quite good, but the fleece inner felt quite cheap. The sewing was well done, but that's fairly usual these days.
Looking back through my collection of TKMaxx spots for comparison, I'd say a closer match is to Iguana skiwear, in quality and design.
I'm happy to agree to have a difference of opinions, but I don't think there's any 'misunderstanding' on my part; I've fondled enough kit over the years to judge quality pretty much at a glance, and, having gone back and taken a long look at it, my opinion hasn't changed much.
At ??25, though, they're certainly worth a look; as I said on the TK Maxx Watch thread In July; "looked okay for a standard, membrane, hard-faced fleece 'soft shell'"
I notice that their website now seems to have been resurrected...