I recommend a Finnish shop Varusteleka and their own Särmä brand jeans and work pants. They deliver over the world and they are truly amazing quality. Though not cheap they are worth the money I think.

I bought two pairs of Särmä worker pants for work and I use them daily and change for the clean pair from time to time. I am crafts/wood working teacher in primary school. I have used them for three years! I dont think they are worn at all now that I think about it. So they are quite amazing. Fully recommend. They also have women cut jeans as well.

Edit. I also recommend Särmä leather belt. Its as awesome.