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REI Heavyweight Polartec Power Dry Long Underwear Bottoms - Men's

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Whether you're hiking, skiing, snowshoeing, mountaineering or Nordic skiing, the REI Heavyweight Polartec® Power Dry® long underwear bottoms offer excellent value and comfort.

  • Polartec Power Dry utilizes 2 different yarns on either side of the fabric to enhance comfort: interior yarn wicks moisture, and exterior yarn dries quickly
  • Combination of the 2 yarns helps keep you dry during highly aerobic activities because it moves moisture away from skin and dries more quickly single-component fabrics
  • Smooth surface of outer fabric makes it easy to put on additional layers
  • Flatseam construction is soft and non-chafing next to skin
  • Brushed elastic waistband ensures a comfortable fit outing after outing
  • Fabric offers UPF rating of 50+ to protect against harmful UV light
  • REI Heavyweight Polartec Power Dry long underwear bottoms feature a next-to-skin fit that hugs the body and moves with you


Item 819176


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REI Heavyweight Polartec Power Dry Long Underwear Bottoms - Men's Specs
Best use
Polyester / polyester blend
93% Polartec Power Dry polyester/3% spandex
30.75 inches
Fabric type
Sun-protective fabric
Moisture wicking
Quick drying
Underwear weight
Inseam (in.)

REI Heavyweight Polartec Power Dry Long Underwear Bottoms - Men's

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REI Heavyweight Polartec Power Dry Long Underwear Bottoms - Men'sis rated4.2222out of5by9.
Rated5out of5byfromNice n Warm, On Clearance rack in springThese are great pants. Normally a little expensive for me but I found them on the clearance rack with a reasonable price tag. I have noticed that they are a little too warm if your activities have you going in and out of doors all day. They begin to get sweaty which is uncomfortable. They do however remain warm when wet. All in all they are a great buy, especially when on sale.
Date published: 2013-05-21
Rated5out of5byfromGreat Thermals, can be too warmThese things are great when you've got anything to do out in the cold but you're going to want them off as soon as you are back inside. They hold your heat well but get uncomfortable if you start sweating in them (like all fleece). Still warm when wet. Poor choice if you work a job where you spend time both inside and outside. Great value if you can find them on clearance.
Date published: 2013-05-21
Rated5out of5byfromGreatWear this under my uniforms in cold weather and it does an excellent job.
Date published: 2013-05-03
Rated4out of5byfromKeeps ya limbs toastyUsed these up at Breck over the '13 Winter season -- temps and wind chill got down to about 0 degrees Fahrenheit and these kept the legs nice and warm while riding up the lift and were breathable enough to not overheat my legs when carving up powder and tree runs. They were a bit of a tight fit but still comfortable. Probably needs a pinch more elastine to make them more form fitting but overall, I'd recommend these as a warm base layer.
Date published: 2013-03-20
Rated5out of5byfromVery Warm and Comfy.I work outside alot, and have worn these along with the HW top in temps as low as 17 below. They work great as far as creating heat with the fleece lining, retaining heat, and wicking sweet. Also, I've done some snow camping and use these too change into at camp too maintain warmth overnight.They're a little heavy too carry, but well worth it. I run hot most of the time and would not wear them at or around freezing especially if I'm active. With a wind proof and water proof shell they perform perfectly. Price is good. I think I spent right around $100 for the top and bottoms.Compare that with other brands ie. smartwool, patagonia, NF, MH, and rei is much cheaper and still gets the job done.
Date published: 2013-02-02
Rated5out of5byfromGreat ProductGreat product. I purchased this because I get cold all the time. Sizing: I am 5'10" with a 31" waist. Average to muscular legs. I purchased a small and they fit pretty snug. I like them that way though, as they stay put. They stop right at my ankle, unlike the loose look in the picture. You can extrapolate your size from there. They were not as warm as I would have thought. They help down to about 10deg. below my "comfortable indoor temperature" when still. I wear these under my slacks to work, so perhaps there is a bigger difference when using more insulated layers. However, when walking outside they do make a noticeable difference in keeping the biting wind out. They are a tad stiff (presumably because of the snug fit), but not enough to make it uncomfortable. They do not snag, and have good stitching. They breath very well. No sticky, humid feeling. Easy to air dry after washing to extend life. I am wearing them now and contemplating purchasing some more with them on sale. Not magically good, but better than nothing. Oh, and I have never been able to successfully use a fly without making a mess, but these stretch enough to drop the front. And I dont feel like a girl doing it.
Date published: 2013-01-22
Rated4out of5byfromWarmThis is a great product for the money. I purchased a couple pairs for a trip to Alaska in 2011 and they did the trick. They are comfy, very durable and layer well. Also stay fairly warm when wet. I would shy away from using these for running, football, track or other activities that require full range of motion in the legs as they don't have enough elastic qualities to stay put for that type of thing. I have worn them snowboarding without any issue's. I liked them enough that I got another two pairs recently and can't tell the difference between them and the ones that are almost two years old.
Date published: 2013-01-14
Rated4out of5byfromVery nice!Sizes seem to run big. I bought a smaller size for a better fit.
Date published: 2013-01-09

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