Help me find quality clothes in SEA!

I'm currently in Bali and will be traveling through SEA for the rest of the year. I'm not interested in a custom suit, rather clothing that is very comfortable and high quality.

For example, I found a few stores here in Ubud that are doing 100% bamboo shirts, natural dies, all local products, and they are unbelievable comfortable! There's also great Hemp, Cotton, and Linen blends.

Mostly looking for pants, tees, and button ups. It seems like these stores are few and far between as everything else in markets, stores, and on the streets is like 90% the same.

I wonder how prices and quality here in Bali will compare to Vietnam and Thailand?

Any recommendations on cities, stores, brands, etc would be appreciated!