I purchased a couple pair to brave the cold winds of Chicago. I was concerned about my knees getting cold and stiff. The fit is very comfortable; there is no cinching in the waist, cutting up the crotch, or itching. They are very comfortable indoors and outdoors. I did not even feel the Chicago winds!

Fit: 6-4; 235; 36 inch waist. 35/36 inch inseam. XL fit pretty well. A little looser than I wanted, but I have a feeling the small would've been too tight in the thighs and butt.

Performance: Not as absolutely warm during periods of inactivity as I was hoping for. My first experience with Capilene. Seems better suited to active pursuits. I wore it beneath a pair of shorts for a run on a 30 degree morning and was fine - warm and dry. I wore it beneath a heavy overalls and jeans on a few 15 degree nights where it was stop and go at work and froze when I wasn't laboring.

I wore these to work when the temps dropped well below zero. I was working in an unheated house for a week and my legs were kept warm with the cap 4s. These grunders are maybe 5 years old now but look and perform like they were new

these pants are high quality, they however are not that much warmer then capilene 3 pants. If you are looking for a very warm baselayer pant look elsewhere.

I am a sucker for capilene, maybe because everytime I use it I like it even more. Very warm and comfortable. Breathes better then the average long underwear. Fits very true to size.

Stayed nice and warm with the capilene and a north face bib overalls for skiing. It was about 25-30 degrees and was perfect. For colder temps I would probably add another layer to be safe when riding cold lifts. Also they were dry after a long day pushing it.

The capline 4 bottoms are just the trick for skiing, hiking, or kickin' around a cold house. These pants dry quickly and move with you beneath any layers, from shell pants to Carharts.