4.5
Rated 4.5 out of 5 stars
81 Reviews

MerinoAire® Active Boxer Brief

Ultralight | 95% Merino
$48

Fit: If between sizes, size down.

Size
Inseam Length
Color: Black

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

4.5
Rated 4.5 out of 5 stars
Based on 81 reviews
86%would recommend this product
ComfortRated 4.6 on a scale of 1 to 5
FitRated -0.0 on a scale of minus 2 to 2
QualityRated 1.0 on a scale of minus 2 to 2
81 reviews
  • J
    J.James
    Verified Buyer
    I recommend this product
    Size Purchased Medium
    Age Range 45 - 54
    Product Standouts Itch free, Odor resistance, Tagless interior
    Rated 5 out of 5 stars
    5 days ago
    Great for workouts!

    Super comfortable and lightweight for workouts.

  • S
    Shilah
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    5 Stars

    My husband specifically requested these for brazilian jujitsu said the way they are set up There is no flopping around or poking out.

  • R
    raimundo
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    5 Stars

    The Most comfortable and healthy underwear i have.