Minus33 Merino Wool Clothing Kobuk Expedition Wool 1/4 Zip. This ¼ zip features thumb holes, a mock neck, and a zipper for venting. You’ll love the warmth and comfort it provides while you are battling the elements! Pair this with our Katmai Men's Expedition Wool Bottom and we guarantee you’ll stay toasty warm all day long.
Minus33 Merino Wool Clothing Kobuk Expedition Wool 1/4 Zip
Expedition - Kobuk 1/4 Zip 100% Merino Wool - Minus33 Merino Wool Clothing
Minus33 Merino Wool Clothing Kobuk Expedition Wool 1/4 Zip
Minus33 Merino Wool Clothing Kobuk Expedition Wool 1/4 Zip
Minus33 Merino Wool Clothing Kobuk Expedition Wool 1/4 Zip
Minus33 Merino Wool Clothing Kobuk Expedition Wool 1/4 Zip
Minus33 Merino Wool Clothing Kobuk Expedition Wool 1/4 Zip
Minus33 Merino Wool Clothing Kobuk Expedition Wool 1/4 Zip
Minus33 Merino Wool Clothing Kobuk Expedition Wool 1/4 Zip
Minus33 Merino Wool Clothing Kobuk Expedition Wool 1/4 Zip
Heavyweight - Kobuk 1/4 Zip 100% Merino Wool

Heavyweight Men's 1/4 Zip 100% Merino Wool

Regular price$159.99
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Color
Size
Size chart

Measurements

Please note, measurements refer to body size, not garment dimensions, unless otherwise noted. Measurements are in inches.



Men's Clothing Size Chart


Size Chest (in) Waist (in) Sleeve Length (in) Shirt Length (in) Inseam (in)
XS 33-35 24-27 30-31 25.5-26.5 25-27
S 35-38 28-30 31-32 26.5-27.5 28-30
M 39-41 31-33 32-33 27.5-28.5 29-32
L 42-45 34-36 33-34 28.5-29.5 32-34
XL 46-48 37-40 34-35 29.5-30.5 32-35
XXL 49-52 41-44 35-36 30.5-31.5 34-35
XXXL 52-54 45-49 36-37 31.5-32.5 34-36


Men's Big and Tall Clothing Size Chart


Size Chest (in) Waist (in) Sleeve Length (in) Shirt Length (in) Inseam (in)
MT 39-41 31-33 35-36 30.5-31.5 32-34
LT 42-45 34-36 36-37 31.5-32.5 33-36
XLT 46-48 37-40 37-38 32.5-33.5 33-36
2XT 49-52 41-44 38-39 33.5-34.5 34-36
3XT 52-54 45-49 39-40 34.5-35.5 35-37
4X 54-57 49-52 36-37 32.5-33.5 34-36
4XT 54-57 49-52 40-41 35.5-36.5 35-37
5X 57-59 52-54 36-37 33.5-34.5 34-36
6X 59-61 54-56 37-38 34.5-35.5 34-36

How to Measure

Chest: Measure the circumference around the fullest part of your chest, underneath the arms.

Waist: Measure the circumference around the natural waist, near the belly button.

Sleeve: Measure from your center back neck, to the elbow, to the wrist.

Shirt Length: This measurement refers to the approximate size of the shirt back length, from the neck to the bottom hem.

Inseam: Measure from the center of the crotch to the end of the ankle.


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Fit Types

Athletic Fit

Regular Fit

Relaxed Fit

Athletic Fit Regular Fit Relaxed Fit

Fits best as: Base Layer

Skin tight, slim, compression style fit. Wear this layer first and add on top of it if needed.

Fits best as: Base Layer, Mid Layer

True to size, standard fit with a little bit of room to breathe, but not too baggy. Perfect on its own or with a t-shirt or thin shirt underneath.

Fits best as: Mid Layer, Insulating Layer, Outer Layer

A little more room than you would find in a Regular fit. Enough space to fit 1-2 layers underneath.

Fit FAQs

What if I am between sizes?

If you are between sizes, we recommend sizing up or down based on what fit type you would prefer, and based on how you plan to wear the piece. Our knitted merino is stretchy and you could realistically go with either size. If you would prefer an Athletic fit, size down. If you prefer a Regular or Relaxed fit, size up.

Do I need to size up/down to layer?

Generally, no, you do not need to purchase a different size than normal. Our base layers are designed to fit right into your current layering system. They are also designed to work with other products in our line, too. You may wish to adjust your sizing if you plan to wear one of our garments in a way that it is not intended, if that's the case please feel free to contact our customer service team for help.

Does your clothing run true to size?

Yes, our clothing runs true to size and is sized similar to most other American brands. If a sizing discrepancy is discovered, you will see fit advice in that product's specific listing.

Not sure what size or fit type you need?

Learn more about layering systems and how they can help you choose. Still need help? Contact our customer service team for personalized advice.

  • In stock, ready to ship
  • Backordered, shipping soon
OEKO-TEX Standard 100

This certified product has been tested against a list of over 1,000 harmful substances, including PFAS.

Our Guarantee
man sipping up his expedition weight 1/4 zip man sitting down wearing expedition weight bottoms

Heavyweight
MERINO WOOL

On the coldest, darkest nights, you will discover yourself seeking the warmth of Minus33 Merino Wool. Our Heavyweight products are suitable for the coldest climates and true expeditions.

Expedition Details

Originally designed for winter mountaineering on Mount Washington, Minus33 Heavyweight clothing has seen action in both the Antarctic and Arctic, and even to the Summit of Mount Everest. Anyone venturing out in the cold will greet our Heavyweight clothing with a warm welcome as either a base, mid or outer layer. When you need to keep the ever-present cold from seeping in, our Heavyweight items will be your best friend.

400 g/m2

Interlock Knit

18.5 Micron

100% Merino Wool
UPF Rating 50+

Compare Weights

RECOMMENDED FOR

Activities: Hiking, Camping, Lifestyle, Snowsports, Hunting, Ice Fishing.

Seasons: Fall, Winter

High Activity Temperatures: 0°F and below

Low Activity Temperatures: 30°F to 0°F

Learn About Layering

Why Merino Wool?

two people sitting next to a river wearing merino wool

Moisture Wicking

Minus33 Merino Wool regulates the amount of moisture on your skin by absorbing any moisture or sweat on your body. Then, the absorbed moisture evaporates out of the fabric into the atmosphere.

merino wool tshirt drying in the sun

Anti-Microbial

Merino Wool fibers naturally reject any bacteria in moisture or sweat as it is wicked away, so foot fungus and smelly odor will not be a problem while wearing our products.

woman hiking with her dog crossing a river

Insulates When Wet

Wool will absorb up to 30% of its weight in moisture without feeling wet or clammy. If you do get wet, wool will insulate you better than cotton or polyester materials.

first responder at a fire

Fire Resistant

Merino Wool insulates against high temperatures and does not readily catch fire. If it does, it self-extinguishes. When Merino burns, it doesn’t melt and stick to the skin like synthetic fabrics do.

woman doing yoga on top of a mountain in merino wool base layers

UV Protection

Don’t worry about sunburn on a sunny day summiting a peak. Lightweight layers have a UPF rating of 25. Midweight and Expedition have a UPF rating of 50+.

Australian merino wool sheep

Renewable

Merino Wool has a low environmental footprint and naturally returns to the elements. Shear a merino sheep in the morning, and in the afternoon they’re happily nibbling their way towards renewing next season’s clip. 

TOTAL EASY CARE

MACHINE WASH AND DRY

Total Easy Care (TEC) Merino apparel is designed for today's busy lifestyle. Total Easy Care Merino garments are all machine-washable, and are suitable for tumble drying.

Even after frequent laundering they retain an 'as new' appearance. They won't shrink, lose their shape, fade or color-bleed. They remain soft and comfortable for the life of the garment.

Customer Reviews

Based on 37 reviews
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Cory G. (Glenwood, US)
Loving it!

Really enjoying my Kobuk 1/4. More versatile than I was expecting. Have worn it as a base layer sitting in the deer stand in the teens with wind, and as both a base and mid layer when hiking anywhere from 0 to -35. Fit is great and able to layer accordingly with it. Excited to play around with different layering variations next winter.

Hi there!

Thank you so much for taking the time to leave such a wonderful review for our Heavyweight - Kobuk 1/4 Zip! We are thrilled to hear that you are enjoying its versatility and that it has been able to keep you warm in various weather conditions. Happy Hunting!

Best,
Sierra S

D
Dan W (Tioga, US)
Almost indestructible

My several year old quarter zip mock t got caught by the lint filter in my dryer. It probably spun snagged by one sleeve for over an hour in a full dryer. It came out looking horrible, had a few small holes, and i thought i would be investing in another to replace it. On a whim, i ranit through the wash and threw it back in the dryer. When it finished it was back in its normal shape, with only a few small holes as a witness to its ordeal. Several years later I still wear it whenever it gets down near zero f. Same holes, same size, and as warm and comfortable as ever. Hard to believe, but true.

Dan,

Thank you for taking the time to leave a review for our Expedition 100% Merino Wool Kobuk 1/4 Zip. We are thrilled to hear that your quarter zip mock t proved to be almost indestructible, even after going through a tough time in the dryer. We take great pride in creating high-quality and durable products, and we are glad that yours stood the test of time. We hope you continue to enjoy its warmth and comfort for years to come. Thank you for choosing our brand and for sharing your experience.

Stay warm,

-Minus33 CS

M
Mike (Saint John, US)
Navy / 2XL
Almost too warm

I love the top. I thought expedition weight would be too much, but no. I do have different weights for different days. I will be buying more for me and my wife.

Mike,

Thank you for your positive feedback about our Expedition - Kobuk 1/4 Zip! We're glad to hear that it has exceeded your expectations in terms of warmth. We also offer different weights for varying weather conditions, so feel free to explore our options for your future purchases. Thank you for your support and we hope to continue providing you and your wife with quality merino wool products.

-Jeannie

D
Derrick

So comfortable and great base layer. Keeps me warm fly fishing in below freezing temps without sweating from the hike into the water.