I've had a pair of these for about 4 years and wear them for snowboarding, snowshoeing, xc skiing, and cold weather running. I find them to be better than anything else I've tried in terms of comfort/fit and insulation/temp regulation. They are super soft and not ichy at all. They wick moisture well, dry quicky, and don't reek after days of repeated use. I'm 5'11", 175 lbs, normally wear 32x32 in pants and the medium is a perfect fit - snug but not skin-tight, no sagging or pulling - you forget you have them on. Highly recommend them.

These Smartwool lightweight baselayer bottoms wick very well, keep you warm and fit very well. They are also more comfortable than synthetics. I have not experienced any odors. I was concerned that the wool fabric would hold sweat, but this is not the case. A previous review criticized the fact that these have a fly. I don't know about you, but when I am on the mountain skiing or riding, the last thing I want to do is drop my ski/board-wear pants/bibs every time I need to use the restroom.....duh! You won't go wrong with these Smartwool baselayers, I'm ordering another pair.

These long john's are perfect. Wool usually makes me itch like crazy but these don't bother me at all. They are super warm, and do not smell after a few days like I find synthetics do. I wish they didn't put a fly in them, but other than that, they fit great and I have already ordered another pair.

Like I said the large fits a bit looser than my Icebreaker leggings but that's fine as I'll wear them under my looser dress pants when it super cold and even to bed sometimes. Nice fabric. I really do love the new wool.

These Bottoms provide the sweet spot between temperature regulation and insulation. I've worn them as a baselayer on fiercly cold days and because they're so low profile and next to skin I am able to add a second base layer if absolutely necessary. Or I can wear a pair of synth boxer briefs under them as well. On the opposite side, I used these on 4th of July last year in upper 80's weather under my shorts (looked a bit interesting but HEY) to protect against the INSANE attacks of the MN state bird up in Itasca and didn't feel overheated at all. They are plenty long but can easily be folded up to be out of the way of boots if necessary as well. If I wear any more merino than I currently do I'll have Boarder Collie's nipping at my heels!

I expected an itch-free wool product that wicks sweat away and I got it all.

I have high expectations for a company such as Smartwool and my expectations were met. Great product!

Hands down the most comfortable long johns I've ever worn. Wicks, warm, and it don't stink.

So they are a bit pricey but once you wear them and use them doing whatever it is you need to do, you will not go back. Smartwool's quality is above nearly anybody's and it is extremely comfortable. Poured liters of my sweat into them and they still do not smell either.

I have every weight of smartwool bottoms they make, and will never go back to synthetic. They are expensive, but worth every penny for comfort, and I believe they are a healthier alternative to wrapping myself in plastic!

I love merino! I wore these camping in the mid 40s, and they kept me nice and toasty. I am looking forward to wearing these on my upcoming NZ snowboarding trip. I am sure they will outperform my synthetic long johns.

Warm, lightweight, comfortable... I just wish that it was acceptable to walk around town in these. But seriously, these fit great, wick well, and makes a wonderful base layer. Not to mention they don't itch at all. Smartwool wins again.