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 Lightweight MTS Crew - Men'sOnly At REI
whitezoomZoom image

REI Lightweight MTS Crew - Men's

Item # 705453

$24.00

Item qualifies for annual
REI Member Refund (typically 10%)

1. Size Chart

2. Qty

3.

Product Rating
Share It
Bookmark and share Bookmark and share

This lightweight underwear top can be worn alone or used as a performance insulation layer.

  • Quick-drying polyester fabric wicks moisture away from body to keep you comfortable
  • Loose fit features two-way comfort stretch
  • Flatseam construction is soft and non-chafing next to skin
  • Sleeves are long enough to cover biceps
  • Dropped back hem stays tucked in
  • Fabric provides UPF 50+ sun protection, shielding skin from harmful ultraviolet rays

Imported.

Item 705453

REI Lightweight MTS Crew - Men's Specs

Specification

Description

SleeveShort
FabricPolyester
GenderMen's

REI Lightweight MTS Crew - Men's Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews
REI Lightweight MTS Crew - Men's
 
4.4

(based on 12 reviews)

100%

of respondents would recommend this to a friend.

Pros

  • Breathable (12)
  • Lightweight (11)
  • Comfortable (8)
  • Moisture wicking (7)
  • Durable (4)

Cons

  • Snags easily (3)

Best Uses

  • Hiking and camping (8)
  • Sports wear (8)
  • Casual wear (7)
  • Travel (7)
  • Wet weather (3)
  • Reviewer Profile:
  • Casual adventurer (8), Avid adventurer (5)

Reviewed by 12 customers

Sort by

Displaying reviews 1-10

Back to top

Previous | Next »

(2 of 2 customers found this review helpful)

 
5.0

Need this Shirt in V-Neck!

By jwilli1963

from Austin, Texas, USA

About Me Casual Adventurer

Site Member

Pros

  • Breathable
  • Comfortable
  • Lightweight
  • Moisture Wicking
  • Warm

Cons

    Best Uses

    • Casual Wear
    • Hiking and Camping
    • Office Work
    • Snow Sports
    • Sports Wear
    • Travel

    Comments about REI Lightweight MTS Crew - Men's:

    This is a really great shirt for everyday wear at the office. It would be even better if REI provided the option of buying this shirt as a V-neck. Most office workers these days do not wear ties, so the crew neck shirt can be seen, which does not look good.

    Give us a V-neck!

    • Gift:
    • No
    • Fit:
    • Feels true to size
    • Sleeve Length:
    • Feels true to length
    • Chest Size:
    • Feels true to size

    (1 of 1 customers found this review helpful)

     
    5.0

    Under a suit, or at the gym

    By El Paso Tom

    from El Paso, TX

    About Me Avid Adventurer

    Site Member

    Pros

    • Breathable
    • Durable
    • Lightweight
    • Warm

    Cons

      Best Uses

      • Casual Wear
      • Hiking and Camping
      • Sports Wear
      • Wet Weather
      • With a suit

      Comments about REI Lightweight MTS Crew - Men's:

      I tried one of these and loved it, especially under my dress shirt and tie...much better than cotton. And it doesn't retain odors or turn colors, easy to wash and quick to dry. Go to the gym after work take off suit add shorts, and shoes and you're ready to sweat. Relegated all cotton t-shirts to car rags.

      • Sleeve Length:
      • Feels true to length
      • Chest Size:
      • Feels true to size
       
      3.0

      Decent base layer - a bit pricey though

      By DeanM

      from Bay Area, CA

      About Me Casual Adventurer

      Pros

      • Breathable
      • Comfortable
      • Lightweight
      • Moisture Wicking

      Cons

      • Thick

      Best Uses

        Comments about REI Lightweight MTS Crew - Men's:

        I bought this as a cycling base layer (although it's not made for that). Consequently it works OK but is not as good as a proper cycling base layer (a little too thick). My fault I guess but FYI in case you're in the same situation.

        • Fit:
        • Feels true to size
        • Sleeve Length:
        • Feels true to length
        • Chest Size:
        • Feels true to size
         
        4.0

        Featherweight and airy

        By like2hike

        from Apex, North Carolina, USA

        About Me Avid Adventurer

        Site Member

        Pros

        • Breathable
        • Comfortable
        • Lightweight
        • Moisture Wicking

        Cons

        • Snags Easily

        Best Uses

        • Hiking and Camping
        • Sports Wear

        Comments about REI Lightweight MTS Crew - Men's:

        For heat, humidity and intense sun, this shirt is perfect (I wear it as outerwear). The UPF 50 is unexpected in a fabric this light and breathable. Wicks moisture like nothing I've ever tried before. Feels almost like you are wearing nothing. For anyone looking for maximum sun protection while staying cool, this shirt is a real find.

        Spritz it a few times with water from a spry bottle and you have some evaporative cooling working for you.

        The only drawback is that it develops pulls somewhat easily. Treat it gently if you want it to look its best. Turning it inside out for laundering will help prevent pulls. You could even wear it inside out when necessary. The inner surface is much more snag resistant. Snipping off the snags cleans them up pretty well.

        I deducted one star for durability, but it is a good value at the price and I wouldn't be without at least one.

        For those looking for a V-neck, I noticed Exofficio offers one (different fabric, but similar idea).

        • Gift:
        • No
        • Fit:
        • Feels true to size
         
        4.0

        Be wary of Velcro while wearing this!

        By RicoSF

        from San Francisco

        About Me Avid Adventurer

        Site Member

        Pros

        • Breathable
        • Comfortable
        • Lightweight
        • Moisture Wicking

        Cons

        • Snags Easily
        • Snags Very Very Easily

        Best Uses

        • Casual Wear
        • Hiking and Camping
        • Underwear

        Comments about REI Lightweight MTS Crew - Men's:

        I figured this would do just as well as a tech T-Shirt while backpacking in the high Sierras in the summer. After all, it wicks away sweat and dries quickly, and has adequate sun protection. What more is needed?

        Well, a little more. A lot of velcro is used in backpacking gear, and if you simply graze this fabric with the 'hook' side of velcro you'll get nasty snags. If that nasty aesthetic bothers you, use it as an under layer or get a different shirt.

        It also isn't thick enough to keep mosquitoes from biting through it, but that really wasn't expected.

        • Gift:
        • No
        • Fit:
        • Feels true to size
        • Sleeve Length:
        • Feels true to length
        • Chest Size:
        • Feels true to size
         
        3.0

        Sleeeeeves!

        By Fun Size

        from San Jose, CA

        About Me Avid Adventurer

        Pros

        • Breathable
        • Comfortable
        • Lightweight
        • Moisture Wicking

        Cons

        • Not fitted enough
        • Sleeves are too long

        Best Uses

        • Hiking and Camping
        • Sports Wear
        • Travel

        Comments about REI Lightweight MTS Crew - Men's:

        This shirt wicks moisture and feels nice against the skin. The main reason I'm giving it only 3/5 stars is that the sleeves are too long. I'm wearing it under a polo right now and the sleeves are sticking out a good 3/4". It's a The North Face polo with pretty standard length sleeves, and I don't like having my undershirt sleeves stick out. Overall the fit is a little too loose for an undershirt. The sleeve length and fit would be fine for a shirt that I would wear by itself, but that's not why I bought this product. I think REI would be better off having a more slim-fitting MTS undershirt and a looser running/training shirt instead of designing this product to do both.

        • Gift:
        • No
        • Fit:
        • Feels too big
        • Sleeve Length:
        • Feels too long
         
        5.0

        Great under-shirt, begging for v-neck

        By some guy NJ

        from New Jersey

        About Me Casual Adventurer

        Pros

        • Breathable
        • Comfortable
        • Lightweight
        • Moisture Wicking

        Cons

          Best Uses

          • Casual Wear
          • Sports Wear
          • Travel

          Comments about REI Lightweight MTS Crew - Men's:

          Trying several moisture wicking undershirts. These are the best so far! Incredibly soft. No odor at all. I think I could wear it for days before my wife would even notice!

          REALLY REALLY NEED V-NECK!!! Please??!??!

          • Gift:
          • No
          • Fit:
          • Feels true to size
          • Sleeve Length:
          • Feels true to length
          • Chest Size:
          • Feels true to size
           
          5.0

          This is a great product

          By MnDoug

          from St. Paul, MN

          About Me Casual Adventurer

          Site Member

          Pros

          • Breathable
          • Comfortable
          • Lightweight
          • Moisture Wicking

          Cons

          • Snags Easily

          Best Uses

          • Travel
          • Yard work

          Comments about REI Lightweight MTS Crew - Men's:

          This is a great product. Not like wearing one of the so called "performance" synthetic plastic bags of the past. Our family went on a Mediterranean cruise last summer and it was HOT. I'm very sensitive to heat, but these shirts are as close to wearable air conditioning as I've ever experienced. I brought two white shirts and washed one every evening and it was dry by morning. Or just wash, role in a towel and stomp on it and wear immediately. Within 15 minutes it will be dry. Great for mowing the lawn and yard work in the sun (SPF50). Seems cooler than bare skin. Because of the weave, it does tend to snag, but that's like complaining that water is wet. I bought two additional shirts in black. Dressier, better for dirt hiding and much better for taking pictures through a tour bus window(a white shirt reflects on the window). Improvements would be tall sizes, a V-neck, anti-bacterial, and some additional color choices (I'm not a fan of olive drab).

          • Gift:
          • No
          • Fit:
          • Feels true to size
          • Sleeve Length:
          • Feels true to length
          • Chest Size:
          • Feels true to size
           
          4.0

          Solid.

          By kalaluka

          from hawaii

          About Me Casual Adventurer

          Pros

          • Breathable
          • Comfortable
          • Warm

          Cons

            Best Uses

            • Casual Wear
            • Travel

            Comments about REI Lightweight MTS Crew - Men's:

            bought these to keep dad warm in a cool spell at his high-elevation mountain home. he wore them almost every day this winter.

            • Gift:
            • Yes
             
            5.0

            Best T-shirt you can get

            By illesg

            from San Jose, CA

            About Me Casual/ Recreational

            Site Member

            Pros

            • Breathable
            • Durable
            • Gives
            • Lightweight

            Cons

              Best Uses

              • Casual Wear
              • Hiking and Camping
              • Sports Wear
              • Travel

              Comments about REI Lightweight MTS Crew - Men's:

              I've tried X-Officio (puckers, snags), Travelsmith (stiff, poor fit), Jockey (sags, fades) and this is the best ever. Slinky but not slimy, fits like a glove, breathes great and you don't even know you're wearing it unless you look at the great image in the mirror. Totally pleased. Stays snug under the arms to wick away sweat, never gets sticky/clammy like cotton. I've tossed my cotton underwear and gone to these for full-time daily wear. Pricey but worth it.

              • Fit:
              • Feels true to size
              • Chest Size:
              • Feels true to size

              Displaying reviews 1-10

              Back to top

              Previous | Next »

              REI Lightweight MTS Crew - Men's Related Items

              Join REI and Enjoy the Benefits

              Members are eligible for an annual refund on qualifying purchases. Plus, they enjoy many more benefits. Get a lifetime membership for $20.

              Add an REI membership to my order.

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

              • Shopping Cart 
              • |
              •  
              • Buy REI Gift Cards
              • REI Gift Cards
              • Fast, easy and one size fits all.
              • Buy now!
              • 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.