Elastic belts are free size and normally don’t tear at all. meaning they can last for life.
I am kind of surprised that they are not commonly recommended in the anti-consumption/ buy it for life communities. Despite the fact that replacing normal belts with them at scale would save the world shitload of resources that are spent on normal belts annually.
Side note: I don’t recommend wearing jeans or suit trousers on daily basis, as there is more durable options that can last for longer time.
Photo is for example, as this is a generic item.
I usually recommend seatbelt belts to friends because they are highly adjustable and very long lasting. I picked up the black GM one over 20 years ago, it stayed with me when my weight fluctuated 50lbs up and back down again. It was extremely useful in my old physically active job, I can catch the corner of a box on the buckle and hold heavier weight a lot easier.
I love it so much, I bought the TMNT belt as soon as I saw it and because I looooove ninja turtles 😬