Yea nothing about this, as it’s drawn, is practical for reality at all. It’s cartoon design. But straps and harnesses are prolific and, imo, extremely sexy.

Here’s an example of a dude with that physique that is wearing a moderately similar upper body setup: https://www.instagram.com/reel/CybIY8mOIFF/?igshid=MzRlODBiNWFlZA==