https://ae01.alicdn.com/kf/HTB1AawYy29TBuNjy0Fcq6zeiFXaW/Off...
https://patternshub.com/wp-content/uploads/2016/06/Tube-top-...
http://images.asos-media.com/products/asos-cut-out-sleeve-on...
https://cdn.tobi.com/product_images/lg/1/teal-kayla-ombre-ma...
(That last one is a bit of a cheat because manufacturers are starting to produce rompers for men).
But here are some things I think are equivalentish..
https://www.asos.com/au/asos-design/asos-design-regular-fit-...
https://www.asos.com/au/one-above-another/one-above-another-...
https://www.asos.com/au/asos-design/asos-design-t-shirt-in-b...
[0] https://www.rickowens.eu/ as an example
[1] https://theshopyohjiyamamoto.com/shop/r/r10/?h1_text_prm=Yoh...
https://a.suitsupplycdn.com/image/upload/b_rgb:efefef,bo_100...
[1] https://en.wikipedia.org/wiki/The_Official_Preppy_Handbook
There’s quite a bit of variation within those. Where I live, “casual” these days is usually something like Columbia PFG - the epitome of “dad clothes”, as my wife tells me. I tend to wear that pretty much exclusively. I substitute jeans for the shorts in winter and buy a new leather jacket about every 3-5 years. I pass my old one on to someone else.
Your point stands, though. As a man, my clothes are 100% based on practicality, and I often only discard them when they’re too worn to be presentable.