Rated 4.5 out of 5
Based on 150 reviews

MerinoAire® 5in Boxer Brief

Ultralight | 95% Merino
$ 34 $ 38
Size
Color: Black

Click Bundle & Save below to save 15% 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!

Closeout Policy

All closeout purchases are non-returnable for refund, store credit or exchange. These items are marked as "final sale" at a reduced price point, which is reflected in the special pricing. We encourage customers to carefully review product details, sizing information, and measurements before completing a final sale purchase, as these transactions cannot be reversed once completed. If you have questions about a final sale item before purchasing, please reach out to help@woolly.clothing and we will get you taken care of!

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 150 reviews
  • 5 Stars
    112 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
150 Reviews
Reviewed by Adin V.
Verified Buyer
I recommend this product
Size Purchased
Small
Age Range
35 - 44
Product Standouts
  • Breathable
  • Moisture wicking
  • Odor resistance
  • Tagless interior
  • Athletic fit
Rated 5 out of 5
Review posted

Great comfort, airy, maybe a tad too thin

Overall these have been my favorite pair. I purchased and washed with other clothing and noticed they wore more than usual. I learned my lesson and used a more natural detergent and combine wash load with only wool clothing.

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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 Taj
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

Great boxers, especially in the heat

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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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