The wool thing is interesting for tops. Smartwool make 250gsm clothing which is like a light sweater - good for cool summer evenings or winter base layers. They make 150gsm clothing too. Their wool t-shirts at this weight feel pretty much like regular t-shirts. But they are also much better than cotton at regulating temperature and perspiration.
They also do an even lighter fibre which is blend of merino and Tencel; a cellulose fibre similar to rayon.
There's option. And I mean, no single item of actual clothing is going to survive daily wear for a year. So, I feel there is a bit of flex in the OP's initial ask re. replacebility.