For pants I will always recommend stretchy jeans. Here are my favourite faded Nudie Jeans.
The good thing about jeans like these is that you just need one pair with you, and you’re set! They are sturdy and don’t smell even after being worn for extended periods.
Getting a pair of jeans with stretch makes them both comfortable and stylish. Of course, depending on your age and style you can get a different model than this one.
Nudie Jeans are Cool and Comfortable
The reason I recommend these jeans in particular is that I know that they can take a great deal of wear before they start to be worn down. I have had these jeans as my primary travel pants since 2016.
They just get more comfortable year after year of wear.
Since they last for so many years and will be your primary pair I think spending 150 USD on pants is a reasonable option.
You get a modern and stylish cut that is comfortable and very versatile.
Buy them on Amazon: Nudie Jeans with stretch