I got these pants for christmas from my parents to wear running in the cold MT winters. They have so far been really warm...too warm for yoga inside, but great for snowshoeing and hiking. My snowshoes kick up snow in the back, which stuck to my pants and soaked through. So, FYI they are not water resistant/proof. I just slid on my thin goretex for the next hike. They are also comfy for around the house, but I haven't had them a month yet and they are starting to pith (ball up) on the inside of my legs where my chubby thighs rub together:( For the price I think something else might have been better, but it was a great gift and will work well for running in the brutal cold.