https://tripleaughtdesign.com, its tactical clothing that at one point was very similar to the stuff special forces guys were wearing. (They are selling more and more 'urban' friendly stuff these days). Most of it is made in America.
The t-shirts do seem ridiculous, but they're famous for their pants, which are definitely in the same range as normal pants. A lot more than $20 at Wal-Mart, but less than many mall brands.
In all seriousness though, how many people are really going to consider a t-shirt to be a family heirloom, that you _should_ pass down through the generations?
The handme downs are passed down through each generation of siblings, but unless you have space, or clothes are adult sized its probably gonna be donated.
Not the parent, but I have many t-shirts that are well over 10 years old. Some of them I wear regularly. A good quality fabric can definitely last decades, we're just getting unused to that and assume everything has to break down.
Im mid 20s, and I can still have tshirts from over 10 years ago. Rotate through them everday, in my experience brandname 10-20 dollar shirts, or kirkland 3 dollar shirts have held up.
Gustin makes good looking stuff, but the buying process is different in you fund a piece and when it gets funded they make it. Their fit is for stick figures though :\