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Details

  • Lightweight, breathable, pure silk jersey is enhanced with a wicking treatment and dries quickly to help keep you warm and comfortable
  • Dropped back hem stays tucked in
  • Rib-knit finish on neck and cuffs
  • Machine wash warm on gentle cycle without bleach or fabric softeners, tumble dry low

Imported.

View all REI Co-op Men's Long Underwear Tops

REI membership

Specs

Best Use Multisport
Shirt Style Crew
Fabric Silk jersey
Moisture Wicking Yes
Quick Drying Yes
Underwear Weight Lightweight
Sleeve Length Long Sleeve
Gender Men's

Size chart

Sizing notes

SHORT: Some pants are available in short sizes, which generally means an inseam that is 2.5 inches shorter than regular sizes. TALL: Some pants, shirts, jackets and parkas are available in tall sizes, which generally means an inseam that is 3 inches longer and a rise that is 1 inch longer, a shirt or jacket body that is 2 inches longer, a parka body that is 2.5 inches longer and sleeves that are 2.5 inches longer than regular sizes.

Rated 4 out of 5 by from Lightweight base layer I was surprised at the sleeve length. It is too long. I'm 6'4" with arm length proportional to my body but I have to fold the sleeves up at least once. This is a minor critique which is outweighed by the positives of the shirt. It functions well as a base layer beneath a heavier pair of long underwear to keep me dry during strenuous activity. I also wear it beneath casual clothing when I'm indoors at work. It is very comfortable against my skin and surprisingly warm for being as lightweight as it is. I would buy it again.
Date published: 2013-02-02
Rated 4 out of 5 by from Good silk undershirt This is made of thin, lightweight silk so I don't imagine it will provide enormous warmth if I'm just sitting around in the cold, but for being active in winter it seems about right. And the tall size is long enough for me (I'm 6' 4").
Date published: 2013-12-10
Rated 5 out of 5 by from Warm Biking on COld Mornings I use this for bicycling on cooler mornings. The silk provides great warmth and dries quickly. I wear under my bike shirt and provides enough protection on those <50 degree F mornings in the PNW. Rolls up tight and goes in handle bar bag for commute home in the sun.
Date published: 2016-09-14
  • y_2017, m_7, d_25, h_4
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_3
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  • clientName_rei-inc
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 171ms
  • REVIEWS, PRODUCT

how much does it weigh?

Asked by: debo
&#8203;This shirt weighs 3.8 ounces.
Answered by: REIservice
Date published: 2017-04-06
  • y_2017, m_7, d_25, h_1CST
  • bvseo_bulk, prod_bvqa, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_1
  • loc_en_US, sid_802211, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
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  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 159ms
  • QUESTIONS, PRODUCT
Back to top

Please select a color/size.

Size chart

Sizing notes

SHORT: Some pants are available in short sizes, which generally means an inseam that is 2.5 inches shorter than regular sizes. TALL: Some pants, shirts, jackets and parkas are available in tall sizes, which generally means an inseam that is 3 inches longer and a rise that is 1 inch longer, a shirt or jacket body that is 2 inches longer, a parka body that is 2.5 inches longer and sleeves that are 2.5 inches longer than regular sizes.

Reviews

Rated 4 out of 5 by from Lightweight base layer I was surprised at the sleeve length. It is too long. I'm 6'4" with arm length proportional to my body but I have to fold the sleeves up at least once. This is a minor critique which is outweighed by the positives of the shirt. It functions well as a base layer beneath a heavier pair of long underwear to keep me dry during strenuous activity. I also wear it beneath casual clothing when I'm indoors at work. It is very comfortable against my skin and surprisingly warm for being as lightweight as it is. I would buy it again.
Date published: 2013-02-02
Rated 4 out of 5 by from Good silk undershirt This is made of thin, lightweight silk so I don't imagine it will provide enormous warmth if I'm just sitting around in the cold, but for being active in winter it seems about right. And the tall size is long enough for me (I'm 6' 4").
Date published: 2013-12-10
Rated 5 out of 5 by from Warm Biking on COld Mornings I use this for bicycling on cooler mornings. The silk provides great warmth and dries quickly. I wear under my bike shirt and provides enough protection on those <50 degree F mornings in the PNW. Rolls up tight and goes in handle bar bag for commute home in the sun.
Date published: 2016-09-14
  • y_2017, m_7, d_25, h_4
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_3
  • loc_en_US, sid_802211, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_rei-inc
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 171ms
  • REVIEWS, PRODUCT

Questions & Answers

how much does it weigh?

Asked by: debo
&#8203;This shirt weighs 3.8 ounces.
Answered by: REIservice
Date published: 2017-04-06
  • y_2017, m_7, d_25, h_1CST
  • bvseo_bulk, prod_bvqa, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_1
  • loc_en_US, sid_802211, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_rei-inc
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 159ms
  • QUESTIONS, PRODUCT