There has been a slow progression to thinner and thinner fabrics for most clothing. I’ve noticed a lot of brands marketing their thin wares as cooling, moisture wicking, athletic, performance etc. Meanwhile the shirt is so thin it’s near translucent and clings to you like plastic wrap. Seems like they’re cutting cost and passing it off as an intentional feature.
Men should generally wear fewer fine merino / fine cashmere knits, and wear more textured knits. I did a little reel thing about shetland sweaters on IG, and I have another I'll put up tomorrow about cable knits and aran knits.