Rated 4.5 out of 5
Based on 148 reviews

MerinoAire® Boxer Brief

Ultralight | 95% Merino
$ 38
Size
Inseam Length
Color: Black

Click Bundle & Save below to save 20% on a 5 pack

In stock, ships fast.

2 day standard shipping

Easy returns, free exchanges

Designed in Seattle

Description

The ultimate workout companion, ensuring you remain cool, dry, and comfortable where it counts. Rep after rep.

Fabric

Everyday weight • 175 GSM
Ultra-soft • 17.5 micron fibers
High blend • 95% Australian merino, 5% elastane
Vented panels • ultralight, 100% merino
Comfort fit • Elastane waistband

Fit & Features

Fit: Athletic

Features:
• Naturally Odor-Resistant
• Moisture-Wicking
• Itch-Free
• Temperature-Regulating
• Superior Design

Layer: Next To Skin

Care

Wash: Pop your Woolly in the machine on a cold cycle with similar colors. But be careful—fine merino fibers can snag on zippers, buckles, and Velcro. Avoid washing with jeans, jackets, backpacks, or any harsh fabrics.

Dry: Tumble dry on low or go au naturel and hang it up to dry.

Avoid Bleach: Skip the bleach—it’s not a friend to wool fibers.

No Iron Needed

Pilling: Wool may pill over time, but turning your garments inside out before washing can help slow this down.

Air Dry Option: For the air dry lovers out there, lay your wet Woolly on a towel, roll it up like a burrito to gently squeeze out extra moisture, then hang it up for a breezy air dry!

One Year Guarantee

People who make the move to merino typically don't go back. We're so confident that our underwear is the best around that we'll back them for a full year. We want you to be happy! If for any reason your Woolly undies aren't top notch we'll replace them.

No fuss just comfy butts.

Responsible Wool Certified

Our Responsible Wool Standard (RWS) certified supply chain verifies high standards of animal welfare and land management practices in wool production and tracks the certified material from farm to final product.

Certified by Control Union:  1313848

Plastic Free Packaging

Woolly's product packaging is 100% recyclable and plastic free. We constantly strive to improve the sustainability of our operations by reducing waste, reselling our returns, and donating our unsellable product.

These are just a few of the ways Woolly does business better

average rating 4.5 out of 5
Based on 148 reviews
  • 5 Stars
    110 Reviews
  • 4 Stars
    15 Reviews
  • 3 Stars
    14 Reviews
  • 2 Stars
    7 Reviews
  • 1 Star
    2 Reviews
83% of reviewers would recommend this product to a friend
Comfort
Rated 4 out of 5
Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is Just Right and 2 is Runs Large
Customer photos and videos
148 Reviews
Reviewed by Luis
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

They feel so soft and comfortable.

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Reviewed by Robert B.
Verified Buyer
I recommend this product
Size Purchased
Medium
Age Range
35 - 44
Product Standouts
  • Breathable
  • Moisture wicking
  • Itch free
  • Odor resistance
Rated 5 out of 5
Review posted

Whoa

My seemingly endless pursuit for the perfect workout base layer has ended. Yes, there are the plastic options out there, but never thought it could be done with wool until I tried the MerinoAire boxer brief. I have both inseam lengths and they feel like magic on my long trail runs. sizing is great with a medium on my 32 in waist

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Comfort
Rated 5 out of 5
Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is Just Right and 2 is Runs Large
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Reviewed by Glenn
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

Very comfortable. Will order more.

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Reviewed by christian
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

super comfy, exactly what i was looking for

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Reviewed by Jim B.
Verified Buyer
I recommend this product
Size Purchased
Large
Age Range
55 - 64
Product Standouts
  • Breathable
  • Moisture wicking
  • Athletic fit
  • 4-season comfort
  • Tagless interior
Rated 5 out of 5
Review posted

So far so good

Purchased a pair in search of replacement for years old smartwool phd ones that were extremely durable and comfortable. These are the best match to that comfort I have found. Fit is accurate and a joy to wear. Hoping they are durable. Great product great price and recommend trying a pair.

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Comfort
Rated 5 out of 5
Fit
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is Just Right and 2 is Runs Large
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