much more comfortable than my old capilenes and much warmer as well

I generally just save them for sleeping in camp b/c it hardly ever gets cold enough that I need to wear them when hiking.

Plenty of length in the leg so you won't end up with high-waters after washing. Soft waistband and fly. Chose smartwool because of the supreme softness - even compared to capilene. Not to mention the fact that they do a much better job of cooling (seems counterintuitive being wool) than synthetics. I am converting to smartwool for all of my baselayer needs from now on, not only for the comfort and performance, but for their sustainability practices. Highly recommended

Very light and warm. I took these with me for a 8 day hike along the Superior Hiking Trail in northern MN. It gets pretty cool up there in the fall, but with these babies on I stayed extra warm and dry (no sweat!) The only time I took them off was when I hopped into the bag for the night, and in the morning I awoke to a fresh smelling pair of long undies. The lined waist is extra comfy (seriously comfy), and didnt cause irritation under a heavy pack belt. The fit was well, more fit... not baggy.

All in all, I didnt pull out a pair of pants the entire trip; who says you cant look cool with a pair of shorts over a slim pair of long undies.

Super Comfy, Super Warm (even for a mid-weight), and extra durable (no tears despite romping through a ton of brush), and even after about 140 miles they didn't put up a stink.

The great thing about wool is it keeps you warm even when wet. As a Search and Rescue team member, I use smartwool baselayer whenever I go on a cold weather mission. They are warm, comfortable and not too constricting. Highly recommend them.

I can't say there is anything wrong with these. They are durable, extremely comfortable, and the regulate temperature very well. I have worn these in hot weather or in freezing weather and have been fine in both. They make for great PJ's too when you're not out in the wilderness! The elastic band is covered with wool so is soft, and has a fly which is always convenient.

First let me say, I really like a lot about SmartWool and its products. I have relied on it as my primary baselayer in cool and cold weather for alpine skiing, xc skiing, running, etc. and it has performed extremely well. However, I started noticing small holes appearing in all four of my SmartWool baselayers (tops and bottoms) after running them through the washer/dryer on delicate/low heat. Since discovering the holes I've started air drying them after running them through the wash, however this level of care is a little hit higher than I would prefer for a baselayer. I have decided to switch over to Capilene as I would prefer a more easy care garment.

First off let me make a correction to my last review: Yes, you do obviously sweat, but the sweat doesn't accumulate within the fabric. Ok, so I have had a chance to use the undies in some other settings. I find myself wearing them under my scrubs at work, as do a great job at keeping me warm when I am working in cooler areas of the hospital such as the ICU, or OR. I have also washed them a few times and they have only gotten more comfy, no shrinking (not even the %5 they say is possible). I might also add that wool and me normally do not mix I cant even wear wool socks. Thank god for those wrinkly New Zealand wonder sheep. Oh, and for all you PETA people out there I am told Smartwool, Icebreakers, and I think IBEX do not partner with suppliers who still practice Mulseing, in fact they supposedly (though one can never be sure) are advocates for the humane treatment of these woolly wonders.

These are awesome. I'm been wearing them all season (~50 days on my way to 60). They keep me warm in subzero temps but also don't get too warm when it is Sunny and 45! I have vents in my ski pants, but I am pretty use to sweating on Sunny spring days and these have been great. Wear very well and look like they will go into next season without any issue. I have had issues with the "microweight" smartwool pants as they will rip easily because the materials is a lot thinner. Merino wool is the way to go!

Not much else to say about these pants, they are comfortable and warm. Not too tight. I slept in these on a camping trip in 20F and they kept me nice and toasty. Although for colder temperatures I would get the Heavyweight version of these (or wear another loser fitting pair of pants on top of the midweights).

Awesome, recently used to go skating on the river at -45C after wind chill. Was warm all the way.

They are long out of the package. I am 6 4 and they are a little long (large) but that doesn't bother me. They are soft and I really like them.

great fit and warm. 'Nuff said.