
Core Merino 330 Half-Zip
Built for frigid late-season sits, the heavyweight Core Merino 330 Half-Zip features our warmest-weight merino wool to keep you warm in the coldest conditions.
$219.00
Free 30-day returns
Features
- Lightweight and durable 330-gram, 17.5-micron ArmorSpun Merino Wool exterior fabric
- Recycled synthetic interior for anti-itch comfort and improved moisture management
- Easy-care merino wool can be washed and dried with your regular laundry
- Snag-preventative stitching along sleeves resists abrasion from your pack
- Zippered chest pocket safely stores your valuables
- Low-profile integrated thumb holes for easy layering
- Total weight: 15 oz.
Description
Built for frigid late-season sits, the heavyweight Core Merino 330 Half-Zip features our warmest-weight merino wool to keep you warm in the coldest conditions. Merino wool has an exceptional warmth-to-weight ratio to keep you warmer with less bulk and it regulates temperature through stop-and-go pursuits. Merino wool also resists odor to help minimize your scent, and our ArmorSpun merino wool outlasts traditional merino wool. And to prevent sweat from leaving you wet and cold, we added a synthetic interior that rapidly moves moisture away from your skin and through your system to keep you dry and warm.
Product ID: 600151

Core Merino 330 Half-Zip
Color: Coyote
$219.00
4.9
4.9 star rating
4.9 star rating 577 ReviewsFit
True to size
Fit
True to size
SEE MORE SEE LESS
Thank you for posting a review!
We value your input. Share your review so everyone else can enjoy it too.
Thank you for posting a review!
Your review was sent successfully and is now waiting for our staff to publish it.
- REVIEWS
Filter Reviews
More Filters
FILTERS Clear All
Rating
Reviews
Show 577 Reviews
Rating
- All
- 5.0 star rating
- 4.0 star rating
- 3.0 star rating
- 2.0 star rating
- 1.0 star rating
Images & Videos
Clear All
577 Reviews
Sort: Select
Updating Results
Z
Zakhar I.
Verified Buyer
5.0 star rating
Color :
Coyote
Size :
L
Weight:
161 lbs - 190lbs
Height:
6' - 6'2''
04/02/26
Color :
Coyote
Size :
L
Weight:
161 lbs - 190lbs
Height:
6' - 6'2''
Fit
True to size
Fit
True to size
SEE MORE SEE LESS
Fits like a glove
Review by Zakhar I. on 2 Apr 2026 review stating Fits like a glove
Great layer and the quality is good
On Core Merino 330 Half-Zip
T
Tom K.
Verified Buyer
5.0 star rating
Color :
Earth
Size :
XXL
Weight:
221 lbs - 250lbs
Height:
6' - 6'2''
04/01/26
Color :
Earth
Size :
XXL
Weight:
221 lbs - 250lbs
Height:
6' - 6'2''
Fit
True to size
Fit
True to size
SEE MORE SEE LESS
Great fit & performance
Review by Tom K. on 1 Apr 2026 review stating Great fit & performance
I have purchased multiple weights of Sitka merino base layers and they wear great, fit great and provide exceptional warmth.
On Core Merino 330 Half-Zip
C
Clayton S.
Verified Buyer
5.0 star rating
Weight:
221 lbs - 250lbs
Height:
5'9'' - 5'11''
04/01/26
Weight:
221 lbs - 250lbs
Height:
5'9'' - 5'11''
Fit
True to size
Fit
True to size
SEE MORE SEE LESS
Fits good and is warm
Review by Clayton S. on 1 Apr 2026 review stating Fits good and is warm
Fits good and is warm
On Core Merino 330 Half-Zip
C
Clint K.
Verified Buyer
5.0 star rating
Color :
Colt
Size :
M
User Group :
Pro
Weight:
161 lbs - 190lbs
Height:
6' - 6'2''
03/31/26
Color :
Colt
Size :
M
User Group :
Pro
Weight:
161 lbs - 190lbs
Height:
6' - 6'2''
Fit
True to size
Fit
True to size
SEE MORE SEE LESS
What a great base layer!
Review by Clint K. on 31 Mar 2026 review stating What a great base layer!
What a great base layer! I wore it for over 50 days of snowboarding this season. Great at regulating temperature and kept the stink at bay after daily use between washes. Washed up nicely, I always dried mine by hanging it up and never had any problems. Thanks.
On Core Merino 330 Half-Zip
M
Matt B.
Verified Buyer
5.0 star rating
Color :
Optifade Elevated II
Size :
XL
Weight:
221 lbs - 250lbs
Height:
6' - 6'2''
03/31/26
Color :
Optifade Elevated II
Size :
XL
Weight:
221 lbs - 250lbs
Height:
6' - 6'2''
Fit
True to size
Fit
True to size
SEE MORE SEE LESS
Core merino 330
Review by Matt B. on 31 Mar 2026 review stating Core merino 330
Awesome base for colder days
On Core Merino 330 Half-Zip









