I've been trying to buy winter coats at end of season (coincidentally; not chasing sales), and one thing is consistent: fabric content is only hinted at. "Full wool" but "slightly stretchy" - possible with a broadcloth woven wool, but more likely "full"!=100%. "Cashmere" at prices that can (at best) be 10% cashmere, but might be 2% just to avoid outright fraud.

I bought a really good-looking dark blue fedora; I received a really good-looking black fedora a size-and-a-1/2 too big. I had to fight them at the credit card level, because they offered me half off at best for a hat I can't wear.

What is inconsistent: only some of them are fraudulent fronts. I'd guess about 25-50% right now, based on my recent shopping experiences. But not all: I ordered some expensive gloves; their advertised fit was wrong; we settled on 50% off (I /can/ wear them, but it's not ideal, and their return policy clearly required me to ship back). That firm had shite measurement guides, but honest merchant fronting.

I've ordered super-cool button-front shirts that ended up being tissue-like fabric. Grrr...

Speaking of fabric... Amazon folded Fabric.com into their Borg cube, and you CANNOT buy fabric by weight online - for some goddamn reason. I want to buy 100% white cotton for a play costume, and need it thicker - between sheeting and terrycloth; closer to the latter; Nothing else really matters to me about it. But can I determine the cloth thickness/weight? Nope.

So: 50% swindlers; 75% idiots; buy clothes in person or else expect to throw a certain amount away.