Highly recommend the patagonia baggie MTB shorts, slim, stretchy, and breathable with a mesh liner type. The patagonia liner is ok, sure theres better, but I like the pockets.
Paired with a velocio trail jersey, its a very breathable setup, that I like quite a bit.
Also to note, if your doing custom, the Verge terra shortsleeve jersey is quite nice as well.
For the price, these are incredibly good MTB trousers.
https://www.decathlon.co.uk/p/all-mountain-mtb-bottoms/_/R-p-309674?mc=8540538
The Assos Trail Winter pants are very comfortable: light and stretchy. The pants are made for the central or southern European winter though and for the northern European winter conditions they are not the best option.
Another nice and light pant is the Gore Wear Fernflow. The gore tex infinium makes them more suitable for cold or wet conditions.
The Pactimo cargo bibs look awesome, but daaaang thatās an unfortunate amount of money. $269USD plus goodness knows how much for shipping.
Check out outdoor research āastromanā shirts.
Designed for climbing but are perfect for riding. Stretchy, snap closures, sun protection and look cool in my opinion. Iāve recommended to many, all thanked me