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frontpage Posted by Rokket | Staff • Apr 6, 2025
frontpage Posted by Rokket | Staff • Apr 6, 2025

REI Co-op Men's Heavyweight 100% Merino Wool Base Layer Half-Zip Top (Red)

+ Free Store Pickup

$50

$105

52% off
REI
19 Comments 51,015 Views
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Update: This deal is still available.

REI has REI Co-op Men's Heavyweight 100% Merino Wool Base Layer Half-Zip Top (Sequoia Red) on sale for $49.83. Select free store pickup where available or shipping is free on orders $60+.
  • Note: Sizing and availability may vary.
Thanks to Deal Hunter Rokket for sharing this deal.

Available colors/sizes:
  • Sequoia Red: S, M, L, XL, XXL, XXXL

Editor's Notes

Written by qwikwit | Staff
  • About this Store:
  • Additional Information:
    • Rated 3.9 out of 5 stars at REI based on over 10 customer reviews.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.
No longer available
  • Sargasso Sea (Blue): M, L

Original Post

Written by Rokket | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Update: This deal is still available.

REI has REI Co-op Men's Heavyweight 100% Merino Wool Base Layer Half-Zip Top (Sequoia Red) on sale for $49.83. Select free store pickup where available or shipping is free on orders $60+.
  • Note: Sizing and availability may vary.
Thanks to Deal Hunter Rokket for sharing this deal.

Available colors/sizes:
  • Sequoia Red: S, M, L, XL, XXL, XXXL

Editor's Notes

Written by qwikwit | Staff
  • About this Store:
  • Additional Information:
    • Rated 3.9 out of 5 stars at REI based on over 10 customer reviews.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.
No longer available
  • Sargasso Sea (Blue): M, L

Original Post

Written by Rokket | Staff

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Top Comments

I think a good sign of quality merino is whether they list the microns or not.. Here they don't, which isn't a good sign.











It's just one more measurement that we can base our decisions in buying O.o.

lol you don't want to wear THICK ass pubes from merino right? That'd be itchy af.
Well, knowing the microns will help if you to determine something isn't the size of pubes and be all itchy on you lol.

https://www.timininous.com/en-us/...de-merinos
TLDR: Lower microns = smaller diameter of wool = SOFT
GSM = Density of the fabric
"Heavyweight 250 g merino wool offers a soft feel without the scratchiness"

I don't agree with your statement. I wear a lot of wool clothes from different brands. I wear wool clothes everyday. Eileen Fisher is higher end women's wool clothing company with good quality wool. They don't list gsm.

19 Comments

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Apr 6, 2025
8,880 Posts
Joined Nov 2013
Apr 6, 2025
Adelley
Apr 6, 2025
8,880 Posts

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

I think a good sign of quality merino is whether they list the microns or not.. Here they don't, which isn't a good sign.



Quote from HappyDealsAK :
I don't know of any major brand that lists the microns. I own a lot of Merino wool/merino wool blends from different brands. REI has good quality products.
Quote from secretwanderer :
On "features" section they say 250g
Quote from yangzi :
"Heavyweight 250 g merino wool offers a soft feel without the scratchiness"

I don't agree with your statement. I wear a lot of wool clothes from different brands. I wear wool clothes everyday. Eileen Fisher is higher end women's wool clothing company with good quality wool. They don't list gsm.
Quote from lyrebird :
I don't see or notice any underwear advertise this. In general merino is super soft and very warm+comfortable (well, depending on weight of course). I have been using merino stuff through a couple winters and never wanted to reach my other synthestic unders such as UA's base layer.
It's just one more measurement that we can base our decisions in buying O.o.

lol you don't want to wear THICK ass pubes from merino right? That'd be itchy af.
Well, knowing the microns will help if you to determine something isn't the size of pubes and be all itchy on you lol.

https://www.timininous.com/en-us/...de-merinos
TLDR: Lower microns = smaller diameter of wool = SOFT
GSM = Density of the fabric
Last edited by Adelley April 12, 2025 at 04:30 PM.
2
2
Apr 6, 2025
109 Posts
Joined Jan 2005
Apr 6, 2025
detpyrcne
Apr 6, 2025
109 Posts
Quote from Adelley :
I think a good sign of quality merino is whether they list the microns or not.. Here they don't, which isn't a good sign.

I didn't notice, thanks! What size is good?
Apr 7, 2025
67 Posts
Joined Jan 2016
Apr 7, 2025
ApprovingPanda
Apr 7, 2025
67 Posts
I ended up with the pull-over version of this shirt as a free review sample when REI introduced this most recent generation of their merino wool base layers, and I absolutely love it. Liked it enough that I planned on buying another immediately, only to pause at the price.
Comparing the description and specs of the fabric of the shirt I have and this half-zip, it appears to be the same material.
But at less than half price, I'm getting another pull-over, and one of these half-zips.

Pull over version I can personally vouch for:
https://www.rei.com/product/23496...2349630020
1
Apr 7, 2025
23 Posts
Joined Jan 2024
Apr 7, 2025
RelaxedMountain6845
Apr 7, 2025
23 Posts
Quote from ApprovingPanda :
I ended up with the pull-over version of this shirt as a free review sample when REI introduced this most recent generation of their merino wool base layers, and I absolutely love it. Liked it enough that I planned on buying another immediately, only to pause at the price.
Comparing the description and specs of the fabric of the shirt I have and this half-zip, it appears to be the same material.
But at less than half price, I'm getting another pull-over, and one of these half-zips.

Pull over version I can personally vouch for:
https://www.rei.com/product/23496...2349630020

How do you end up with a review sample?
Apr 7, 2025
91 Posts
Joined Jun 2022
Apr 7, 2025
EfficientCheetah827
Apr 7, 2025
91 Posts
Quote from RelaxedMountain6845 :
How do you end up with a review sample?

Yeah no shit. How?!?
2
Apr 7, 2025
344 Posts
Joined Mar 2019
Apr 7, 2025
DJ18
Apr 7, 2025
344 Posts
Thanks in for one!

Free shipping for REI members, otherwise free over $60 looks like.
Apr 7, 2025
318 Posts
Joined Sep 2012
Apr 7, 2025
secretwanderer
Apr 7, 2025
318 Posts
Quote from Adelley :
I think a good sign of quality merino is whether they list the microns or not.. Here they don't, which isn't a good sign.

On "features" section they say 250g

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Apr 7, 2025
9,447 Posts
Joined Dec 2010
Apr 7, 2025
yangzi
Apr 7, 2025
9,447 Posts
Quote from Adelley :
I think a good sign of quality merino is whether they list the microns or not.. Here they don't, which isn't a good sign.

"Heavyweight 250 g merino wool offers a soft feel without the scratchiness"

I don't agree with your statement. I wear a lot of wool clothes from different brands. I wear wool clothes everyday. Eileen Fisher is higher end women's wool clothing company with good quality wool. They don't list gsm.
Last edited by yangzi April 7, 2025 at 12:05 PM.
Apr 7, 2025
8,880 Posts
Joined Nov 2013
Apr 7, 2025
Adelley
Apr 7, 2025
8,880 Posts
Quote from yangzi :
"Heavyweight 250 g merino wool offers a soft feel without the scratchiness"

I don't agree with your statement. I wear a lot of wool clothes from different brands. I wear wool clothes everyday. Eileen Fisher is higher end women's wool clothing company with good quality wool. They don't list msg.
Edited, read top comment
Last edited by Adelley April 12, 2025 at 04:31 PM.
1
4
Apr 7, 2025
1,086 Posts
Joined Mar 2008
Apr 7, 2025
lyrebird
Apr 7, 2025
1,086 Posts
Quote from Adelley :
Microns is an important measurement for baselayers that is touching your skin.

The more fine then the more softer it feels while higher microns it'll feel itchy. Seems like an important number
I don't see or notice any underwear advertise this. In general merino is super soft and very warm+comfortable (well, depending on weight of course). I have been using merino stuff through a couple winters and never wanted to reach my other synthestic unders such as UA's base layer.
Apr 7, 2025
9,447 Posts
Joined Dec 2010
Apr 7, 2025
yangzi
Apr 7, 2025
9,447 Posts
Quote from Adelley :
Microns is an important measurement for baselayers that is touching your skin.

The more fine then the more softer it feels while higher microns it'll feel itchy. Seems like an important number

I thought gsm shows how thick the fabric is. The higher the number, the fabric is thicker, therefore warmer. I have many wool base layers and non-base layers in different msg with different warmth.

Wool base layer with 150 gsm doesn't feel any rougher or softer than 300 gsm jacket or leggings I have. Or vice versa.

EDIT:
"In the context of wool fabrics, GSM stands for "grams per square meter" and indicates the weight of the fabric, with higher GSM values generally signifying a heavier, thicker, and potentially warmer fabric. "
Last edited by yangzi April 7, 2025 at 12:08 PM.
Apr 7, 2025
85 Posts
Joined Jan 2022
Apr 7, 2025
TenderJoke7900
Apr 7, 2025
85 Posts
Quote from yangzi :
I thought msg shows how thick the fabric is. The higher the number, the fabric is thicker, therefore warmer. I have many wool base layers and non-base layers in different msg with different warmth.

Wool base layer with 150 msg doesn't feel any rougher than 300 msg jacket I have.
I'm not sure what "msg" is supposed to be. I'm used to Merino (and various other insulating materials) being expressed in grams per square meter. And in Merino I can't recall ever seeing anything but 150 for the light stuff, 250 for the heavier stuff.
Apr 7, 2025
9,447 Posts
Joined Dec 2010
Apr 7, 2025
yangzi
Apr 7, 2025
9,447 Posts
Quote from TenderJoke7900 :
I'm not sure what "msg" is supposed to be. I'm used to Merino (and various other insulating materials) being expressed in grams per square meter. And in Merino I can't recall ever seeing anything but 150 for the light stuff, 250 for the heavier stuff.

Sorry. Typo. GSM.

"In the context of wool fabrics, GSM stands for "grams per square meter" and indicates the weight of the fabric, with higher GSM values generally signifying a heavier, thicker, and potentially warmer fabric. "
Apr 7, 2025
530 Posts
Joined Nov 2023
Apr 7, 2025
IdahoRoamingGnome
Apr 7, 2025
530 Posts
Reviews mention it's thin, closer to mid weight, and gets holes easily.
1

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Apr 8, 2025
67 Posts
Joined Jan 2016
Apr 8, 2025
ApprovingPanda
Apr 8, 2025
67 Posts
Quote from RelaxedMountain6845 :
How do you end up with a review sample?
I was part of the REI Advisors program years ago, and they rolled folks over into the current REI Trailblazers program.
I think it's invite only(and I have no idea the criteria to qualify for the new program since I was grandfathered in from the previous).
It's both an interesting and frustrating program. They send out the 'There is a new offer' email to all the people who have chosen activities in the target demographic, but they have a very limited quantity to give away, it seems like only 1-2 of any given size available and maybe only 1-2 styles - so you might have hundreds/thousands of people who all got the notification at the same time trying to claim 1 of 8 possible shirts. *laugh*

Most often by the time I've seen the email everything available has been claimed, or there is a token tiny sized shoe choice left.

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