Long and warm
My first merino base layer and I love them! I am a taller woman, ~5'9", ~140lbs, and have a hard time finding pants that are long enough but aren't too big in the waist. I got the medium; they are a great length, and fit well through the waist and hips. They are warm in cool to cold weather. I wore them camping in Death Valley in December - windy with lows below freezing and highs around 60F. I wore them day and night and they provided the right level of warmth, without being too warm. I've also used them on my 2 mile walk to work in snowy winter conditions, and was equally pleased. My only complaints are that they are a little itchy, but its minor, and they bunch a little at the ankles.