Rohan Bags will be the answer, but each to their own.
There are many style of trousers out there, but if you want a product that is very high quality, will dry from wet, in a matter of minutes, in the right conditions, then trousers manufactured by Rohan would be my choice.
A pair of almost identically designed Mountain Equipment Freestyle trousers, have been with me, for just over thirty years, and the polycotton material dries almost as quickly as Pertex, and their incredibly windproof.
When conditions are so bad, you pull on your waterproof over trousers, but in normal conditions, a cotton weave is sufficient to keep the wind at bay.
The slight moisture in the crotch area, is never a problem, as it never gets sufficiently damp to be a nuisance.
Ive lost count of how many times my ME trousers have been saturated with water, but in sunny breezy conditions, you can almost watch the polycotton dry in front of you.
With trousers, you certainly do not want any material with an added water repellancy coating added to them
Trousers should be fully windproof, dry from wet, in minutes not hours, and have pockets in abundance.
Make sure their made of high quality cotton mix, and you will not go far wrong.
Craghoppers make similar cotton trousers, as do other manufactures, but for over all quality in manufacture Rohan are amongst the best, their over manufactured, and made to last a considerable time, like my ME Freestyles.
Saw a pair in my size in Gaynors Ambleside recently for only £30, in my size, various colours as well.
Manufacturers do not like their products to last decades, but certain trousers on the market, are so well manufactured, that you will still be wearing them in 30+ yrs or more.