To find the best winter pants for men, our editors and writers have personally tried on 50 options since 2020 and tested each of them for at least two weeks, such as traveling abroad in Bonobos’ flannel-lined chinos, attending a formal event or an office work day in Wills’ wool trousers and Peter Millar’s flannel pants, skiing in The North Face’s insulated pants, or sporting Eddie Bauer’s flannel-lined jeans as part of our casual fits for going out.

To get a feel for how these men’s winter pants really felt and how they held up, we vetted our tested options by taking notes of their style, fit, warmth, softness, price point, versatility, durability, and performance such as stretch, moisture-wicking, and insulation. We examined whether they fitted well and true to size, whether their fabric could withstand hours of movement in cold temperatures, whether they were made of heat-retaining properties, and whether they could be worn for more than one occasion.