In reply to Andy Johnson:
I have 2 pairs from Decathlon, softshell trousers effectively, no membrane, closely woven fabric with brushed inside to feel slightly fleecy. Think this is the closest to what I have, they change every now and then but the Forclaz names are often the same on differing products!
https://www.decathlon.co.uk/sh900-mens-warm-trousers-blk-id_8369747.html
They come up small, but stretch. Very comfortable, breathable enough for winter, and durable. Moderately shower resistant when new, but stay warm when wet and dry quickly for the thickness.
I live in mine for walking and canoeing all winter. Would recommend trying on if you live near a Decathlon, they simply don't fit some of my mates. I'm an average Medium, 32" waist, 32" leg, I have the size labelled as EU44, but instore the sizing can be very confusing and doesn't always match the current web sizes (which may be a better attempt to get it right than the French instore ticketing).