As to where they're made its unclear:
> Where are your socks made? We produce our products all over the world, including the US, Taiwan, China, and Peru at the most technical and highest-rated manufacturers.
> We're proud to report that all have passed audits with very strict standards for health, safety, and social compliance.
And to note I have both Bombas and Fruit of the Loom currently in my drawer. The difference is negligible in my opinion. You can ask me in a few years if my Bombas held up, but I can tell you my cheap Walmart brand stuff has held up.
[EDIT] Bombas was founded in 2013, not 2019. 2019 was the date they started selling t-shirts. Point still holds that they don't exactly have a track record compared to a legacy player and I still doubt they'll exist in 20 years