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Pnuma Outdoors

Merino Wool Base Layer Pant

$149.99
Shipping calculated at checkout.
16 reviews

Cool in the Heat and Warm in the Cold

Color: CAZA
Size: S
Features

*19.5 micron, 190 gm/m2 100% New Zealand Merino Wool
*Flat stitched seams
*Super Soft elastic stretch waisband
*Contoured knee adds mobility and prevents bunching when layered
*Treated with Polygiene® StayFresh™ and Polygiene® OdorCrunch™ for enhanced odor control
*Care: Machine wash cold, dry flat
*Recomend sealed storage to prevent moth damage
*0.16 oz (based on size Large)

Description

Buttery Soft and amazingly comfortable, our Merino Wool collection has high strength-to-weight ratios and elasticity, plus odor-control and moisture-wicking to keep you dry and undetected.

Sizing & Fit

View Sizing Chart Page

HOW TO MEASURE

SLEEVE - Measure from the center back neck bone to wrist.

CHEST - Measure at the fullest part of chest area keeping tape measure level.

WAIST - Measure at the naturally smallest place on the torso, keeping the tape measure level.

INSEAM - Measure from the crotch point to ankle, where you would like pants to fall.

GLOVES - Use a ruler to measure the top of your hand across your knuckles and use the chart below to determine glove size.

HATS/CAPS - Measure the circumference of the head above the ears.

Color: CAZA
Size: S
Merino Wool Base Layer Pant - Pnuma Outdoors

10 YEARS PROVEN, BACKED FOR LIFE

Merino Wool Base Layer Pant

Merino Wool Base Layer Pant – Next-to-Skin Comfort for Every Hunt

The Pnuma Merino Wool Base Layer Pant is the foundation of a serious hunter’s layering system. Made from 100% merino wool, these pants naturally regulate body temperature, wick moisture, and resist odor—making them the perfect choice for long days in the field or multi-day backcountry hunts. Whether you're hiking hard or sitting still in sub-freezing temps, these merino wool hunting base layer pants provide breathable warmth and unmatched next-to-skin softness. The flatlock seams prevent chafing, while the athletic fit eliminates bulk under your outer layers. Quiet, lightweight, and built to move, these base layer pants are ready for any pursuit—especially when stealth matters.

Key Features

  • 100% merino wool for natural odor resistance
  • Thermoregulating and moisture-wicking for all-season use
  • Flatlock seams for all-day comfort and reduced friction
  • Athletic cut for easy layering under hunting pants or bibs
  • Silent and breathable—ideal for bowhunting and active hunts
  • Elastic waistband for secure, non-binding fit

Ideal For

  • Base layer wear in cool to freezing conditions
  • Spot-and-stalk, treestand, or still-hunting setups
  • Hunters who need scent control and next-level comfort

Why It Stands Out

The Merino Wool Base Layer Pant offers the warmth of wool with the performance of premium hunting gear—soft, silent, and built for real-world pursuits. Whether you're chasing elk in the high country or whitetails in a stand, this base layer keeps you comfortable and focused.

FAQs

Are these pants warm enough for late-season hunts?
Yes. The insulating power of merino wool provides excellent warmth when layered under mid or outer layers—ideal for cold weather hunts.

Do these base layers control scent?
Absolutely. Merino wool is naturally antimicrobial, helping suppress body odor during long sits or multi-day hunts without washing.

Can I wear these under hunting bibs or pants?
Yes. The athletic fit is designed for smooth layering, fitting comfortably under outer garments without bunching or riding up.

Do they wick sweat during high activity?
They do. Merino wool pulls moisture away from your body while remaining breathable, keeping you dry even when covering ground quickly.

Will they stretch out or shrink?
No. The fabric is pre-shrunk and built to maintain its shape through heavy use and repeated washing.

FitPnumaQualityBase layerBottomsProductBigLegsPatternSizing
  • 5 stars: 15 (94%)
  • 4 stars: 1 (6%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
C
Christopher

Ordered a smaller size than I would usually so it was more form fitting. Very soft and light weight.

J
James King (Montgomery, US)
Very warm !

Perfect fit , quality is outstanding !

C
Colin Carlton (St Louis, US)
Great product

These are the best long underwear I have found. I wear them almost daily.

A
Andrew

Amazing

J
J.R. (Glen Rock, US)
A limited review...

So, I have been wanting to try marino wool base layers for a while, and since my old lightweight synthetic military bottoms started giving up the ghost, and Pnuma was having a sale, I figured the time was right to jump. Now, I just want to point out that this was a limited review, as I have only had the chance to wear the bottoms about six times, give or take, and it was mostly static use in what I would call mild winter conditions with temps ranging from the high 20's to the low 40's. For that reason alone, I was only able to give 4 stars since I have not had the opportunity to see how they perform under much colder temps, or under higher activity levels where moisture management would be a factor. Given that, I can say they were very satisfactory so far. The fit is excellent, as well as the warmth/comfort of the material. It feels quite sturdy, and has ample stretch, so should not bind during movement. Quality of construction seems to be quite good as well: the elastic looks like it should give many years of service, and the stitching is sturdy and well done. As a matter of opinion, I think they could easily forgo one, or both of the embroidered logos, as it is a bit much given that the branding is all over the elastic waistband - cut that, cut the cost to have it done, and pass the couple of bucks savings on to the customers. I am looking forward to seeing how they perform over the long haul under more extreme conditions, and will probably pick up the matching top for next hunting season.

T
Travis Pollard (Wyoming) (Rock Springs, US)
Great Base Layer

Great base layer, great fit, long enough for my long legs. Breaths great and dries fast.

Q
Quincy Mccombs (Ellwood City, US)
Very warm and comfortable

Very warm and comfortable use as a base layer, or even on its own on warmer days.

J
Jordan Reese (Asheboro, US)
Two thumbs up

Purchased these about a month ago and just used them the first time this past weekend (October 14-15). It’s still early season, but they performed well in 40 degree weather. Soft, comfortable, lightweight, and warm. I definitely recommend.

M
MICHELE RHED (Yatesboro, US)
merino wool base layers

My husband likes the merino wool base layers. He wears them in cold weather and they keep him warm. This is his second set so I would not say that they last more than a couple of years.

J
Jose Martinez (Tulsa, US)
Layer pant

It’s great. Keeps you warm and it’s almost unnoticeable.

D
Darrell Shanholtzer (Grove, US)
Merino Baselayer Pant

Pnuma's Caza pattern is the best in the industry. Their fit is fantastic, and everything is true to size. The high level of quality is obvious. Can't wait to use it this fall.

J
Jon Keller (Hanford, US)
Merino Wool Base Layer Pant

Well I have not worn these Merino pants in the field test as I bought them for Fall and Winter outdoors activities. I tried them on and they feel great and the sizing is perfect. I love the option to have Big and Tall items available. I purchased one of the competitors base layer pants and they were too short and didn’t feel near as comfortable on. Can’t wait to try them on in the field. Thanks Pnuma

D
Dustin Smith
Great bottoms

For as light as they feel they are incredibly warm. Worm them on an all day shed hunt in 40/50 degree Temps and was kept very dry.

J
John Cepullio (Valley City, US)
buck master

fits perfect. feels perfect. exactly what I was looking for. wish it was little cheaper so I could buy 5 more pairs..

D
David Capsopoulos (Grundy Center, US)
Merino Wool Base Layer Pant

Bought these for a 3rd rifle Colorado elk hunting trip. They worked very well from 40 degrees down to single digits. Soft and comfortable.

S
Sheri Smith (Hermon, US)
Great product

My husband loves them bought 5 more pairs for our sons and grandsons for hunting this year.