I've had most of my clothes for 10+ years.

Lands end is incredibly unfashionable, but their materials are very solid. I'm a fan of their basics, things like t shirts, button downs, etc. Their dress shirts and slacks are especially nice.

Eddie Bauer has some nice heavier options for flannels and henlys. They look basically new still.

For jeans, I highly recommend getting some cheap raws. I'm bougie, so I like the weird materials naked and famous uses, but almost any sanforized raws will treat you well. Unsanforized shrink with exposure to water, which makes sizing difficult.

Boots: Red wing. Expensive but irreplaceable. I've worn them every day for years, and they still look great.

Socks: I like gold toe for any non-wool socks I need. If I need wool socks, I get the Kirkland ones. I have some from high school still, they've faded, but they're for boots, so who cares?

Non-boots: I get my dress shoes from Allen Edmonds, and my sneakers from vans or converse. I get running shoes and nonslips from new balance. To be blunt, they're borderline disposable, but I want all that damage going into my shoes and not my joints.

Belts: Pretty much anything full grain will last forever.