When I first got these pants I thought they would not cut the cold. First day out I did not wear anything but some whitey tighties under and planned on loosing my nuggets to frost bite. Nope!!! These things stay warm when mother nature tries to freeze whats most important to you. Nice and slim, super comfy. Medium Fit a 32" waist great with no belt. 6'1" purrrrrrfect length on these pants too.