Arc'teryx Proton are long women's warm pants that you can use on their own or even as an intermediate layer: they are comfortable, breathable and warm thanks to the lightweight Octa knit thermal layer.
Their fit is excellent for all body shapes, they are soft both to the touch and on and once you try them on you will never want to leave. You can use them for climbing but also for other winter mountain activities such as trekking or hiking.