"Get a size smaller to keep taught against skin"
The boot cut thermal next-to-skin layer is quite important to get right while winter mountaineering. It needs to be tight against the skin yet the boot cut prevents boot 'overstuff' around the cuff. I'm quite pleased in how this purchase turned out but I needed to exchange for a size smaller... Smartwool is more... generous than Icebreaker in terms of sizing. FYI.
Smartwool calls these "midweight," but I don't think they make anything heavier. These are the best choice for colder ski days and ice-climbing, because they're nice and warm, but won't bunch up around your boots and socks. The material gets softer and (I think) warmer after you wash them. Very comfortable against your skin and you can wear them for several days without them getting loose or stinky. They dry quickly if you sweat them out. If you have long legs (as I do) they'll cover your knees, but won't fully cover your calves. Not really a problem. These are also very comfortable underneath jeans on cold days. If you don't already insist on merino wool base-layers, you should.
Get $30 BACK in Rewards Points and FREE 2-DAY Shipping on Items $75+ w/ code 3KPOINTS. Details
DETAILS AND RULESRules for the Moosejaw 3k Points offer:
Here's even more boring rules about the 3k Points offer. It cannot be combined with other offers or promotions, or applied to prior purchases. Offer only good through Monday, December 22th, 2014. Qualifying order value is after any other applicable discounts and before tax, if applicable. Excludes Patagonia, Western Mountaineering, GoPro, Garmin, Suunto, Kuhl, and Marmot, and gift card purchases. 3000 Points will be added to your account after your order ships. Sorry for being so mean.
Free Shipping All orders over $75 ship free via 2 day shipping. All Moosejaw Brand orders over $12 ship free via Economy shipping. All other orders under $49, Economy shipping is $5.95.
Moosejaw Rewards You earn 10 points for every dollar you spend on Moosejaw.com or at our shops (5 points for discounted items). That's like getting 10% back to spend on MoosejawRewards.com. So if you get a $200 jacket at Moosejaw.com you can turn around and get a $20 tee at Moosejaw Rewards. You are signed up and earn points automatically when you make a purchase and give your email address.