OK, real world experience.
I was sent some compression tights and top to test for BPL. I tried wearing them overnight one night in the mountains. My legs froze. So I took them off (under my quilt), and I could feel the warmth flow back into my legs. I had a good night thereafter.
That meant the compression tights were constricting the blood flow through my legs so much that warmth from my core was not getting down to my legs. I am a classic medium in size, and so were the tights. Compression, right?
But that meant the tights were restricting not only the warmth from my core but also the blood, and the oxygen in the blood, and the blood and plasma systems were not sweeping the waste products from my muscles out of my legs. I cannot imagine that this was good for me at all. My subsequent web searches supported these conclusions. Treadmill tests in independent labs agreed.
But what about all the glowing endorsements you see on the vendors web sites and on the web? A sad secret for you: pro athletes do not make a living from prize winnings. No chance. They make their living from paid endorsements their agents negotiate for them. The photo shoots are probably the only time the athletes even see the product. Either their agent, or the customer rep, writes the endorsement. It’s a dirty business.
I challenged the rep who sent me the stuff to provide some independent medical references to support his claims. He ranted a bit, tried to say I was not honouring the agreement to provide a positive review, but had NO references he could supply.
You know all those product reviews you read on Amazon? They are mostly written by about 1,000 paid shills. Amazon found this out and is starting to address the problem. Marketing can be a very dirty business.
Come in sucker (and bring your wallet).
Cheers