Don't let cold temperatures stop you. Start your layering system right with the Under Armour Men's Base 2.0.

The Under Armour Men's Base 2.0 Midweight Long Underwear Bottom brings you a versatile performance base layer you can use for a variety of cold-weather activities. Ergonomically placed, flat-seamed stitching gives you an athletic fit that won't chafe or restrict your movement as you ski a bump line or break trail in your snowshoes. These midweight bottoms offer a slightly looser cut than a compression tight. A thick waistband keeps these midweight bottoms comfortably in place all day.

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Under Armour Base 2.0 Midweight Legging - Men's

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Here's what others have to say...

5 5

Very good layer

It is a perfect layer. I wore it in sunny days and in very cool days and I felt very confortable. It keeps you warm enough.

Other advantage about this layer is that it doesn't stink after skiing during all day long.

Is there a warmer version of this? It...

Is there a warmer version of this? It worked beautifully in 30 degree weather.

Responded on

Here is a warmer version of a pant that is in UA product line: UND0150

5 5


Excellent buy, not only does it fit perfectly but the softness is incredible. It does what is claims and of course the price was unbelivable, usually I do my research before buying anything online and as soon as I visited it was a no brainer. I'm 5'11" / 155#s and the Medium size was the perfect fit.

2 5

needs inprovement

This product keeps my warm on cold days in the 30's. However, the back panel is to loose and that extra material get caught between my butt cheeks and I hate that. I will not buy this product again.

5 5


These leggings are the mid-weight version of UA's Base Crew line. Wicks moisture well, dries very quickly and is durable. Snug fit but give with your movements. They are warmer than the 1.0 but not a huge difference IMO.

5 5

Great all around

These thing are warm, but not TOO warm, and they wick away moisture like a champ. They are slightly looser (aka, not formfittng)and are extremely comfortable. Plus, they fend off unpleasant stenches fairly well. Definitely a good thing.

I have a 31 waist and the medium fits perfect. Well worth the money.

4 5

solid but expensive

i got these as a gift and i love them but i think theyre probably a little steep. i have several waffle pattern items i use for snowsports and i swear by that after using fleece etc with this slick simple tech. really does breathe super well. 2.0 weight is perfect for all but the warmest of days and id recommend it for anyone trying to decide the best all around base layer.

5 5

Under Armour Base 2.0 Midweight Legging

Under Armour Base 2.0 Midweight Legging is a great base layer. Under Armour base layers keep you dry and warm and are exceptional at moving moisture and perspiration away from your body.

5 5

Under Armour Base 2.0 Midweight Legging

Under Armour Base 2.0 Midweight Legging is a great base layer. Under Armour base layers keep you dry and warm and are exceptional at moving moisture and perspiration away from your body.

5 5

Just as advertised

I use these as my base layer for winter kayaking on the Chesapeake Bay and salt marshes. Performs wonderfully.

Tip...On not so hot days I wear right under my waders...may want to invest in a synthetic shirt to go over as the buckles on the waders caused undo wear to the fabric.

5 5

Under Armour does it again

The more I buy UA it seems I find better and better products. 2.0 performs as well or better than any other mid-base layer on the market. One can spend more money but UA performs well for the price.

5 5

good job

bought one set for son-in-law, he works outside...he loves them, another set for Christmas for hubby, we will see how he likes them. He works inside but is always cold. well worth the money

4 5

Perfect for cold weather

This was one of my go to baselayers midwinter when it started to get cold. It is really comfortable, breathes really well, and kept my legs warm all winter long. The only complaint I had with these was the same as the 1.0. The foothole is a little big so it was a little loose around my ankle. Other than that, these are great.

when will you have more in stock?

when will you have more in stock?

Going to Patagonia in April (average temps...

Going to Patagonia in April (average temps 40 degrees) can be as low as 30 degrees F Photographic trip. will be outside most of the day in windy conditions. Don't want to get cold or get too hot and sweat chest 40 (size med top) waist 35-36 (large or x large) do I have the sizes right?

Responded on

Not a fan of this company as the goal instead of warmth is more trying to make the person look thinner , go with a columbia or marmot , mountainharwear made and tested--------------------------------------------------------I was skeptical of Under Armour for snowboarding, but these are excellent base i have used, in fact. Who cares if you are a fan of th company if the gear works right for your needs? Sizing is pretty true to form, so order as listed. I wear these (top and bottom) with only shell snowboarding pants and jacket down to 0° and still have to open vents to dump heat. Make SURE you have windproof outwear (which you should as base layers are designed to wick moisture and retain warmth, not stop the wind).-BW

5 5

Great Layer!

the is a great fit. Love them for running in the winter.. snowboarding base layer or just wearing around the gym to keep my knees warm and legs loose. Wear a 34x32 pant and the medium fits great... 5'10" 175

5 5

Best base layer I have tried

I have tried several other brands, and I admit I was skeptical of Under Armor (just like Nike), but these are amazing. They fit tight, but not like many others I have tried. They move with you and are not restrictive. I am a big guy, coming in at 6'2" and 230#, and the XL works great. I sweat easily, and these wick moisture better than anything I have tried and keep me warm and dry. Synthetic, but seem to not retain odor as easily as others. Excellent thermals.

i have a leg length of 32 inches and a...

i have a leg length of 32 inches and a waist of 30 inches, which size should i get?

4 5

Works Great for Running

The one thing I don't like about Under Armour is that it tends to be tight, and although not necessarily restrictive, restrictive feeling. I do not like to use it under other layers because it just feels like I'm stacking other layers on an already tight under layer. I don't know how else to explain it... I just don't like it. However, I tend to use them as outer garments in situations where I want tight layers which minimize chafing while maximizing sweat wicking. On wintertime long distance runs, I use these bottoms under my running shorts... essentially as running tights. They work fabulous for that. I just don't like them under other layers.

5 5

Looser Fit

They are not the compression tights I'm used to and not as tight fitting. UA makes great products.