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idk_then | Staff 14.8K Views
Aug 25, 2026 5:31 PM

REI Co-op Merino 185 Men's Long-Sleeve Half-Zip Base Layer Top (3 Colors)

$30

$90

66% off
+ Free Pickupat REI
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Deal Details
REI has REI Co-op Men's Merino 185 Long-Sleeve Half-Zip Base Layer Top for $19.83. Select free pickup where available or shipping is free on orders $60+ or for Co-Op Members ($30 lifetime membership).

Note: Availability will vary by size / color.

Thanks to Deal Hunter idk_then for sharing this deal.

Available in:

  • Black
  • Night Cove/Midnight Navy
  • Smoked Paprika
Features:
  • Ultrafine 185 g merino wool offers a soft feel without any itchiness
  • Made with 100% merino wool that naturally breathes, wicks away sweat, dries quickly and resists odors, making it an ideal multiday trip companion
  • UPF 30 sun protection
  • Half-zip front helps with venting; standing collar and chin guard for protection
  • Flat seams and merrow stitch construction eliminate chafing
  • Underarm gussets allow full range of movement
  • Designed to hug the body for optimum performance
  • Weight: 8.5 oz. (size Large)
  • Machine wash warm, gentle cycle, with wool wash product; do not twist or wring; remove promptly; do not bleach; tumble dry low; dry cleaning not recommended
  • Field-tested on its own and as a base layer while hiking, running, rock climbing, cycling, skiing and camping in diverse climates across the U.S.
  • Made in a Fair Trade Certified factory

Editor's Notes

Written by johnny_miller | Staff
  • Rated 4.5 out of 5 stars based on over 140 REI customer reviews.
  • Please see the original post for additional details & give the forum comments a read for helpful discussion.

Original Post

Written by idk_then | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
REI has REI Co-op Men's Merino 185 Long-Sleeve Half-Zip Base Layer Top for $19.83. Select free pickup where available or shipping is free on orders $60+ or for Co-Op Members ($30 lifetime membership).

Note: Availability will vary by size / color.

Thanks to Deal Hunter idk_then for sharing this deal.

Available in:

  • Black
  • Night Cove/Midnight Navy
  • Smoked Paprika
Features:
  • Ultrafine 185 g merino wool offers a soft feel without any itchiness
  • Made with 100% merino wool that naturally breathes, wicks away sweat, dries quickly and resists odors, making it an ideal multiday trip companion
  • UPF 30 sun protection
  • Half-zip front helps with venting; standing collar and chin guard for protection
  • Flat seams and merrow stitch construction eliminate chafing
  • Underarm gussets allow full range of movement
  • Designed to hug the body for optimum performance
  • Weight: 8.5 oz. (size Large)
  • Machine wash warm, gentle cycle, with wool wash product; do not twist or wring; remove promptly; do not bleach; tumble dry low; dry cleaning not recommended
  • Field-tested on its own and as a base layer while hiking, running, rock climbing, cycling, skiing and camping in diverse climates across the U.S.
  • Made in a Fair Trade Certified factory

Editor's Notes

Written by johnny_miller | Staff
  • Rated 4.5 out of 5 stars based on over 140 REI customer reviews.
  • Please see the original post for additional details & give the forum comments a read for helpful discussion.

Original Post

Written by idk_then | Staff

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20 Comments

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Aug 25, 2026 9:50 PM
184 Comments
Joined Sep 2010
hoanAug 25, 2026 9:50 PM
184 Comments
Grabbed one, cancelled my other order for the rei 1/4 zip that was polyester for 20$.
Aug 26, 2026 2:48 AM
87 Comments
Joined May 2011
bandsharksAug 26, 2026 2:48 AM
87 Comments
Thank you for posting. Great deal, just in time for snow boarding season.
Pro
Aug 26, 2026 4:30 AM
626 Comments
Joined Apr 2008
tomhayes
Pro
Aug 26, 2026 4:30 AM
626 Comments
One of these two weekends ago for 49 bucks I'm gonna go see if I can get a price adjustment
Aug 26, 2026 4:44 AM
315 Comments
Joined Sep 2009
BYHJAug 26, 2026 4:44 AM
315 Comments

Our community has rated this post as helpful. If you agree, why not thank

All the reviews about it forming holes scares me.
4
Aug 26, 2026 4:51 AM
39 Comments
Joined Jun 2019
danailtAug 26, 2026 4:51 AM
39 Comments
Returned it after buying it on sale last year. The fabric was so itchy it was completely unbearable to wear (at least for me).
1
Aug 26, 2026 5:06 AM
2.2K Comments
Joined Nov 2010
leovipAug 26, 2026 5:06 AM
2.2K Comments
Quote from danailt View quoted comment :
Returned it after buying it on sale last year. The fabric was so itchy it was completely unbearable to wear (at least for me).
Did you wash it? They get softer once they get washed
Aug 26, 2026 5:07 AM
39 Comments
Joined Jun 2019
danailtAug 26, 2026 5:07 AM
39 Comments
Quote from leovip View quoted comment :
Did you wash it? They get softer once they get washed
Yes, I did, forgot to mention it.

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Aug 26, 2026 5:13 AM
13 Comments
Joined Sep 2022
FaithfulLaborer616Aug 26, 2026 5:13 AM
13 Comments
Quote from danailt View quoted comment :
Returned it after buying it on sale last year. The fabric was so itchy it was completely unbearable to wear (at least for me).
I have 100% merino base layer from other brands, same issue.
Aug 26, 2026 6:23 AM
100 Comments
Joined Aug 2017
DaffyMouseAug 26, 2026 6:23 AM
100 Comments
I'll stick with the $20 non merino option given this one's itchiness issue.
Aug 26, 2026 10:03 AM
94 Comments
Joined Mar 2020
JawsytownAug 26, 2026 10:03 AM
94 Comments
Quote from danailt View quoted comment :
Returned it after buying it on sale last year. The fabric was so itchy it was completely unbearable to wear (at least for me).
That's exactly how mine feels in that ugly burnt orange color. Still.. gonna get another here
Aug 26, 2026 12:53 PM
2.3K Comments
Joined Dec 2006
bob151Aug 26, 2026 12:53 PM
2.3K Comments
I've had smartwool merino base layers and one rei merino base layer.

Despite washing in cold water and air drying, the rei still shrunk to the point that it was just too tight for me to put up with. The smart wool base layers have not shrunk and they are not itchy.
Aug 26, 2026 1:47 PM
53 Comments
Joined Aug 2022
RoarkTNAug 26, 2026 1:47 PM
53 Comments
Deal appears dead...

"Access Denied
You don't have permission to access "http://www.rei.com/product/192870/rei-co-op-merino-185-long-sleeve-half-zip-base-layer-top-mens?" on this server.
Reference #18.77d2f17.1787752000.205701c3
https://errors.edgesuite.net/18.77d2f17.1787752000.205701c3"
Global Mod
Aug 26, 2026 1:52 PM
5K Comments
Joined Jul 2007
SpaceCallahan
Global Mod
Aug 26, 2026 1:52 PM
5K Comments
Quote from RoarkTN View quoted comment :
Deal appears dead...

"Access Denied
You don't have permission to access "http://www.rei.com/product/192870/rei-co-op-merino-185-long-sleeve-half-zip-base-layer-top-mens?" on this server.
Reference #18.77d2f17.1787752000.205701c3
https://errors.edgesuite.net/18.77d2f17.1787752000.205701c3"
Try copy and paste see if that works

Code:
https://www.rei.com/product/192870/rei-co-op-merino-185-long-sleeve-half-zip-base-layer-top-mens?
Aug 26, 2026 2:03 PM
25 Comments
Joined Sep 2025
ScarletLeopard494Aug 26, 2026 2:03 PM
25 Comments
My merino wool shirts are warm and comfortable but they are delicate and tiny holes appeared. I can still wear them as a base layer despite the holes.

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Aug 26, 2026 4:59 PM
1.6K Comments
Joined Jul 2003
kugelAug 26, 2026 4:59 PM
1.6K Comments
Quote from BYHJ View quoted comment :
All the reviews about it forming holes scares me.
I got this last time, found lots of holes in it without ever wearing or washing it. I believe it was moths, they love merino wool.

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