REI.com
  • Online: www.REI.com
  • URL for this product:
  • From the U.S. and CanadaCall 1-800-426-4840
  • Mon. through Sun., 4 a.m. through 11 p.m. PT.
  • InternationalCall 1-253-891-2500
  • Mon. through Sun., 4 a.m. through 11 p.m. PT. English language only.
REI Midweight Polartec Power Dry Long Underwear Bottoms - Men\'sOnly At REI

BLACK FRONT

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

    • $26.93
    • $39.50*

    REDUCED PRICE You Save 31%

    4
    (10)

    Item # 837155

    Product size and color
    • 100% Satisfaction Guaranteed
    • Gear and Advice You Can Trust

    Orders of $50 or more ship for free.
    Learn more

    To view videos or use the zoom feature on REI's websites, please download the latest version of Adobe Flash Player.
    _

    • NOW PLAYING

    Whether you're hiking, skiing, snowshoeing or Nordic skiing, the men's REI Midweight Polartec® Power Dry® long underwear bottoms offer excellent 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
    • The combination of the 2 yarns helps keep you dry during highly aerobic activities because it moves moisture away from skin faster than single-component fabrics such as cotton
    • Flatseam construction is soft and non-chafing next to skin
    • Brushed elastic waistband ensures a comfortable fit outing after outing
    • Next-to-skin fit hugs the body, maintaining skin contact to boost fabric performance
    • Fabric offers UPF rating of 30 to protect against harmful UV light
    • Functional fly
    • The men's REI Midweight Polartec Power Dry long underwear bottoms feature a next-to-skin fit that hugs the body

    Made in USA.

    Item 837155

    REI Midweight Polartec Power Dry Long Underwear Bottoms - Men's Specs
    Specification
    Description
    Best use
    Multisport
    Polyester / polyester blend
    Polartec Power Dry polyester
    Yes
    Yes
    Yes
    Midweight
    30.75 inches
    Men's
    Fabric type
    Fabric
    Sun-protective fabric
    Moisture wicking
    Quick drying
    Underwear weight
    Inseam (in.)
    Gender

    REI Midweight Polartec Power Dry Long Underwear Bottoms - Men's Customer Reviews

    REVIEW SNAPSHOT®

    by PowerReviews
    REI Midweight Polartec Power Dry Long Underwear Bottoms - Men's
     
    4.2

    (based on 10 reviews)

    90%

    of respondents would recommend this to a friend.

    Pros

    • Comfortable (8)
    • Breath-ability (7)
    • Retains body heat (7)
    • Durable (4)

    Cons

      Best Uses

      • On the mountain (7)
      • Under clothes (6)
      • Anytime (3)
        • Inseam:
        • Feels too short

           

          Feels true to length

           

          89% 

          (8 reviews)

          Feels too long

           
        • Waist:
        • Fits loose

           

          Runs small

           

          True to size

           

          100% 

          (10 reviews)

        • Reviewer Profile:
        • Snowboarder/skier (6), Outdoorsman (5)
        • Was this a gift?:
        • No (9)

      Reviewed by 10 customers

      Sort by

      Displaying reviews 1-10

      Back to top

       
      3.0

      Much better but still needs improvement

      By Boundary waters camper

      from Bloomington, MN

      About Me Outdoorsman

      See all my reviews

      Site Member

      Pros

      • Durable

      Cons

      • Poor Fit

      Best Uses

      • On The Mountain
      • Under Clothes

      Comments about REI Midweight Polartec Power Dry Long Underwear Bottoms - Men's:

      REI finally started using Polartec fabric. No other synthetic fabric can compare. Two complaints I have on these are that the calf area is too big and the colors are terrible. Long underwear should always have a standard all black option without silly looking colored stitching. I am a former body builder and have very large calf muscles. I'm surprised to see how much extra room these have in that area. I find that slightly uncomfortable and they don't retain heat well in that area or wick moisture as well as a result. I'm hoping next year's are better but I still can't find one I think is a better product at this point. Base layers all seem to have issues at least for me.

      • Inseam:
      • Feels true to length
      • Waist:
      • True to size
      • Was this a gift?:
      • No

      Comment on this review

       
      4.0

      Great thermals!

      By xamdevesh

      from Asheville, NC

      About Me Casual Wearer, Outdoorsman

      See all my reviews

      Pros

      • Breath-ability
      • Comfortable
      • Retains Body Heat

      Cons

        Best Uses

        • Anytime

        Comments about REI Midweight Polartec Power Dry Long Underwear Bottoms - Men's:

        These are great thermals! I'd recommend them for anyone going through weather in Spring and Fall - not so great for Winter but that's what the heavy ones are for :-) Would rate 4.5 if there were an option.

        • Waist:
        • True to size
        • Was this a gift?:
        • No

        Comment on this review

         
        5.0

        Great quality and value

        By Masami

        from Irvine, CA

        About Me Snowboarder/Skier

        See all my reviews

        Verified Buyer
        Site Member

        Pros

        • Breath-ability
        • Comfortable
        • Durable

        Cons

          Best Uses

          • On The Mountain

          Comments about REI Midweight Polartec Power Dry Long Underwear Bottoms - Men's:

          I used this as a base layer, under my ski pants. They fit well, are comfortable, and provide just enough warmth for my days on the slopes.

          • Inseam:
          • Feels true to length
          • Waist:
          • True to size
          • Was this a gift?:
          • No

          Comment on this review

           
          5.0

          Keeps me dry and warm on cold ski days

          By Chester

          from Fort Collins CO

          About Me Outdoorsman, Snowboarder/Skier

          See all my reviews

          Verified Buyer
          Site Member

          Pros

          • Breath-ability
          • Comfortable
          • Durable
          • Retains Body Heat
          • Stylish

          Cons

            Best Uses

            • On The Mountain
            • Under Clothes

            Comments about REI Midweight Polartec Power Dry Long Underwear Bottoms - Men's:

            Great gear i'll buy a few more pairs down the road, and the price was half of what smartwool and other high end brands cost

            • Inseam:
            • Feels true to length
            • Waist:
            • True to size
            • Was this a gift?:
            • No

            Comment on this review

             
            5.0

            Good basic long undewear bottoms

            By Tafo

            from Cleveland, OH

            About Me Commuter, Snowboarder/Skier

            See all my reviews

            Verified Buyer
            Site Member

            Pros

            • Comfortable
            • Retains Body Heat

            Cons

              Best Uses

              • Commuting In Winter
              • On The Mountain

              Comments about REI Midweight Polartec Power Dry Long Underwear Bottoms - Men's:

              I wear these in extreme cold on ski trips; also when temps drop below zero for my commute to work. These bottoms keep you warm. Would not recommend wearing these indoors unless you have the heat turned way down.

              • Inseam:
              • Feels true to length
              • Waist:
              • True to size
              • Was this a gift?:
              • No

              Comment on this review

               
              4.0

              warm, breathable, bit short though

              By Outdoors Dutchman

              from Northern New Jersey

              About Me Casual Wearer, Outdoorsman

              See all my reviews

              Site Member

              Pros

              • Breath-ability
              • Comfortable
              • Durable
              • Retains Body Heat

              Cons

              • Too short

              Best Uses

              • Anytime
              • On The Mountain
              • Under Clothes

              Comments about REI Midweight Polartec Power Dry Long Underwear Bottoms - Men's:

              too short for a 6 foot tall man with athletic build, but since it is worn under clothes it still works okay

              • Inseam:
              • Feels too short
              • Waist:
              • True to size
              • Was this a gift?:
              • No

              Comment on this review

               
              5.0

              Good quality

              By TrekwithDog

              from San Rafael

              About Me Snowboarder/Skier

              See all my reviews

              Verified Buyer
              Site Member

              Pros

              • Retains Body Heat

              Cons

                Best Uses

                • On The Mountain

                Comments about REI Midweight Polartec Power Dry Long Underwear Bottoms - Men's:

                We needed an extra large size for my son's friend, and this fit him perfectly.

                • Inseam:
                • Feels true to length
                • Waist:
                • True to size
                • Was this a gift?:
                • No

                Comment on this review

                 
                2.0

                Too thin to be "midweight"

                By Cycle Hike Ski Ken

                from Beverly, MA

                About Me Snowboarder/Skier

                See all my reviews

                Verified Buyer

                Pros

                • Breath-ability
                • Comfortable

                Cons

                • Poor Insulation

                Best Uses

                • Sleeping
                • Under Clothes

                Comments about REI Midweight Polartec Power Dry Long Underwear Bottoms - Men's:

                I tried wearing these as a base layer under my Marmot uninsulated ski pants. I froze my butt off. I had to put on a thermal base layer and then put these on over. I was skiing in Vermont and the temp. was around 25. They may work OK for spring skiing but they don't provide any insulation on cold days.

                • Inseam:
                • Feels true to length
                • Waist:
                • True to size
                • Was this a gift?:
                • No

                Comment on this review

                 
                5.0

                Huge upgrade over cotton

                By afevans2

                from Urbana IL

                About Me Snowboarder/Skier

                See all my reviews

                Verified Buyer
                Site Member

                Pros

                • Breath-ability
                • Comfortable
                • Retains Body Heat

                Cons

                  Best Uses

                  • On The Mountain
                  • Under Clothes

                  Comments about REI Midweight Polartec Power Dry Long Underwear Bottoms - Men's:

                  I used this on a recent trip to big sky Montana. I've never been warmer on the mountain. I used both the pants and the shirt base layers with only a thin sweater, shell, and snow pants and was completely comfortable in -8 degree weather at +8000ft.

                  • Inseam:
                  • Feels true to length
                  • Waist:
                  • True to size
                  • Was this a gift?:
                  • Yes

                  Comment on this review

                  (5 of 5 customers found this review helpful)

                   
                  4.0

                  Comfortable, functional and inexpensive

                  By mathamoz

                  from Madison, WI

                  About Me Outdoorsman, Year Round Cyclist

                  See all my reviews

                  Site Member

                  Pros

                  • Breath-ability
                  • Comfortable
                  • Retains Body Heat

                  Cons

                    Best Uses

                    • Anytime
                    • Under Clothes

                    Comments about REI Midweight Polartec Power Dry Long Underwear Bottoms - Men's:

                    I needed a base layer of some sort for my 17 mile bicycle commute. Since there aren't any temperature ratings listed I decided to try the midweight first.

                    Yesterday it was 20 degrees F during my morning commute and my legs stayed warm and dry. I wasn't too warm or too cold, they were basically just right. I wore a pair of convertible hiking pants over them for wind dampening purposes.

                    This morning it was 10 degrees F during my commute and my legs got just a little cold. I wasn't uncomfortably cold, but unlike the previous morning I could definitely feel the cold.

                    I'm 6'2" tall, 215 lbs, and I typically wear a 36x32 pants. I got the Large size and they seem to be good in length and maybe just a tad loose at the waist, but I tried on the Mediums in-store and they were too small to be comfortable.

                    Overall, these seem to be good at keeping the moisture away and keeping you warm when it's 10 or so degrees F below freezing. I imagine they would be better at even lower temps with a more substantial outer layer.

                    • Inseam:
                    • Feels true to length
                    • Waist:
                    • True to size
                    • Was this a gift?:
                    • No

                    Comment on this review

                    Displaying reviews 1-10

                    Back to top

                    * Intermediate markdowns may have been taken.

                    How are we doing? Give us feedback on this page.

                    REI Anniversary Sale May 17–27. Plus, members SAVE 20% on 1 full-price item with coupon code ANNV13. Details

                    • Join REI today!
                    • REI Membership
                    • REI member benefits include an annual refund (typically 10% on eligible purchases).
                    • Join REI today!
                    • Sign up for REI Gearmail®
                    • and get 15% off selected items!
                    • Store Locator
                    • Locate an REI store near you.
                    • Find a Store

                    Find REI on: FacebookTwitterYouTubeFlickr