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5 Pack // Black Merino Boxer Briefs

13 reviews

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FREE shipping in Canada
Sizing Guide

Sizing Chart

  • In Inches
  • In CM
S M L XL XXL
Neck 14-14.535.5-37 15-15.538-39.25 16-16.540.5-42 17-17.543-44.5 18-18.545.75-47
Chest 37-3894-96.5 39-4099-101.5 41-42104-106.5 43-44109-112 45-46114.5-117
Waist 31-3279-81 33-3484-86.5 35-3689-91.5 37-3894-96.5 39-4099-101.5
Sleeve Length 32-3381-84 33-3484-86.5 34-3586.5-89 35-3689-91.5 36-3791.5-94

How to Measure

Unbound How To
- Details
    + Technical Info
      + Care Instructions
        + Shipping and returns

        Shipping and Returns

        Shipping Info

        USA
        USPS: 7-9 business days
        DHL:  1-3 business days

        Canada
        Canada Post: 3-7 business days

        International
        Standard: 7-14 business days
        DHL: 2-6 business days

        *All times include handling time


        Full refund or exchange within 90 days

        You can return clothing that you purchased directly from unboundmerino.com as long as it is unworn, unwashed, and in the original condition in which it was delivered in. We are happy to offer a full refund or exchange for any reason within 90 days from the ship date.

        Please fill out the RETURN SLIP that came with your order, include it with your package and send everything to the address listed on your return slip.

        • Exchanges are subject to availability. A refund will be processed if the product you requested is unavailable.
        • Please note that all socks and underwear are FINAL SALE and can not be returned or exchanged for sanitary reasons.

        If you are sending from outside of Canada and need to declare the value of the order, please mark 'RETURN ITEM' with a declared value of $1.


        If you do not have a RETURN SLIP and need to print one click here.

        For answers to any additional questions you may have, please visit our Help Center here.

        As featured in

        Meticulously crafted for your comfort

        Packing for any trip should start with the perfect base layer. When designing our Merino wool boxer briefs, we were uncompromising down to every last detail. That’s why the ultra-fine Merino wool and reinforced stitching found here is the exact same Merino wool and stitching we use to make our Merino wool T-shirts.  We then went the extra step of perfectly blending each Merino fiber with Nylon and Spandex for extra durability and a more snug fit. You’ll also find a tag-free, ultra-soft waistband that prevents rubbing and irritation – definitely a plus for long treks. This is Merino wool underwear designed to take you places.

        + Moisture wicking
        + Odor resistant
        + Antibacterial
        + No itchy label
        + 84% Merino wool, 12% nylon and 4% spandex
        Add to Cart
        WHAT'S INCLUDED
        Merino Wool T-Shirt
        V-Neck T-Shirt
        Boxer Briefs
        Merino Wool Socks
        Merino Wool Crew Socks
        Pocket Tank Top
        Compact Travel Hoodie
        Long Sleeve
        Raglan Crew Sweatshirt
        Women's Merino T-Shirt
        Classic Button-Down
        Merino/Polyester T-Shirt
        Essential Shorts
        Merino Crew Neck T-shirt - 175
        Merino Wool T-Shirt
        Merino Wool T-Shirt
        • Moisture wicking
        • Odor resistant
        • Antibacterial
        • Anti-wrinkle
        • Core Temperature Control
        • Reinforced stitching
        • 100% ultra-fine 17.5 micron, 190g/m2 Merino wool
      • 100% Merino wool jersey
      • Ultra-fine 17.5 micron
      • 190g/m2
      • Wash in normal to cool temperature setting.
      • Lay flat to dry.
      • Do not tumble dry.
      • Odor resistant
      • Fast drying
      • Anti-wrinkle
      • Temperature regulating
      • V-Neck T-Shirt
        Merino Wool T-Shirt
        • Moisture wicking
        • Odor resistant
        • Antibacterial
        • Anti-wrinkle
        • Core Temperature Control
        • Reinforced stitching
        • 100% ultra-fine 17.5 micron, 190g/m2 Merino wool
      • 100% Merino wool jersey
      • Ultra-fine 17.5 micron
      • 190g/m2
      • Wash in normal to cool temperature setting.
      • Lay flat to dry.
      • Do not tumble dry.
      • Odor resistant
      • Fast drying
      • Anti-wrinkle
      • Temperature regulating
      • Boxer Briefs
        Merino Wool Boxer Briefs
        • Reinforced stitching
        • Comfort stretch band
        • Moisture wicking
        • Odor resistant
        • Antibacterial
        • 84% Merino wool, 12% nylon and 4% spandex
      • 84% Merino wool, 12% nylon and 4% spandex
      • Ultra-fine 18.5 micron
      • 180g/m2
      • Woven elastic waistband
      • Odor resistant
      • Fast drying
      • Anti-wrinkle
      • Temperature regulating
      • Merino Wool Socks
        Merino Wool Socks
        • One-Size-Fits-All for foot sizes 6 to 13
        • Made with a custom blend of Merino Wool (68%), Nylon (29%) and Lycra Spandex (3%) for comfort and durability
        • Odor resistant
        • Antibacterial
        • Core Temperature Control
        • Breathable vents
      • Made with a custom blend of Merino Wool (68%), Nylon (29%) and Lycra Spandex (3%) for comfort and durability
      • Odor resistant
      • Fast drying
      • Anti-wrinkle
      • Temperature regulating
      • Merino Wool Crew Socks
        Merino Wool Crew Socks
        • One-Size-Fits-All for foot sizes 6 to 13
        • Made with a custom blend of Merino Wool (68%), Nylon (29%) and Lycra Spandex (3%) for comfort and durability
        • Odor resistant
        • Antibacterial
        • Core Temperature Control
        • Breathable vents
      • Made with a custom blend of Merino Wool (68%), Nylon (29%) and Lycra Spandex (3%) for comfort and durability
      • Odor resistant
      • Fast drying
      • Anti-wrinkle
      • Temperature regulating
      • Pocket Tank Top
        Pocket Tank Top
        • Moisture wicking
        • Odor resistant
        • Antibacterial
        • Anti-wrinkle
        • Core Temperature Control
        • Reinforced stitching
        • 100% ultra-fine 17.5 micron, 190g/m2 Merino wool
      • 100% Merino wool jersey
      • Ultra-fine 17.5 micron
      • 190g/m2
      • Odor resistant
      • Fast drying
      • Anti-wrinkle
      • Temperature regulating
      • Compact Travel Hoodie
        Compact Travel Hoodie
        • Odor resistant
        • Temperature regulating
        • Moisture wicking
        • Seamless pockets
        • Sleek black YKK inverted zipper
        • 97% ultra-fine Merino wool / 3% elastane for durability and stretch
        • 21.5 micron / 250 GSM
      • 97% ultra-fine Merino wool / 3% elastane for durability and stretch
      • 21.5 micron
      • 250 GSM
      • Light and breathable
      • Odor resistant
      • Fast drying
      • Anti-wrinkle
      • Temperature regulating
      • Long Sleeve
        Long Sleeve
        • Moisture wicking
        • Odor resistant
        • Antibacterial
        • Anti-wrinkle
        • Core Temperature Control
        • Reinforced stitching
        • 100% ultra-fine 17.5 micron, 190g/m2 Merino wool
      • 100% Merino wool jersey
      • Ultra-fine 17.5 micron
      • 190g/m2
      • Odor resistant
      • Fast drying
      • Anti-wrinkle
      • Temperature regulating
      • Raglan Crew Sweatshirt
        Raglan Crew Sweatshirt
        • Odor resistant
        • Temperature regulating
        • Moisture wicking
        • French terry interior for softness and comfort
        • 97% lightweight ultra-fine Merino wool for light packing and breathability
        • 3% elastane added for durability and stretch
        • 21.5 micron / 250 GSM
      • 97% lightweight ultra-fine Merino wool for light packing and breathability
      • 3% elastane added for durability and stretch
      • 21.5 micron
      • 250 GSM
      • Light and breathable
      • Odor resistant
      • Fast drying
      • Anti-wrinkle
      • Temperature regulating
      • Women's Merino T-Shirt
        Women's Merino T-Shirt
        • Moisture wicking
        • Odor resistant
        • Antibacterial
        • Anti-wrinkle
        • Core Temperature Control
        • Reinforced stitching
        • 100% ultra-fine 17.5 micron, 190g/m2 Merino wool
        Classic Button-Down
        Classic Button-Down
        • Odor resistant
        • Light and breathable
        • Fast drying
        • 54% premium Merino wool
        • 46% organic cotton
        • 146gsm
        • Cross-woven for breathability
      • 54% Merino wool, 46% organic cotton
      • 146gsm
      • Cross-woven for breathability
      • Light and breathable
      • Odor resistant
      • Fast drying
      • Wrinkle resistant
      • Perfect for packing
      • Merino/Polyester T-Shirt
        • Antibacterial
        • Moisture wicking
        • Odor resistant
        • Anti-wrinkle
        • Core Temperature Control
        • Ultra-fine 17.5 micron Merino/Poly blend
        • 56% Merino, 44% Polyester - 190g/m2
      • 56% Merino, 44% Polyester
      • 17.5 micron
      • 190g/m2
      • Odor resistant
      • Fast drying
      • Anti-wrinkle
      • Temperature regulating
      • Essential Shorts
        • Anti-wrinkle
        • Water Repellent
        • Hidden Back Zipper Pocket
        • 2-way Comfort Stretch
        • 48% Merino wool, 48% Cotton, 4% Spandex
        • 8 1/2" inseam length
      • 48% Merino wool, 48% Cotton, 4% Spandex
      • 8 1/2" inseam length
      • Anti-wrinkle
      • Water repellent
      • 2-way comfort stretch
      • Odor resistant
      • Merino Crew Neck T-shirt - 175

        What People Are Saying

        Customer Reviews
        4.8 Based on 13 Reviews
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        Your input is very much appreciated. Share it with your friends so they can enjoy it too!

        Filter Reviews:
        A Unbound Merino Customer
        EB
        07/07/2020
        Eric B.
        United States United States
        Officially Dethroned Tommy John - These are my #1's

        They are now my favorite undies and I have like 6 pairs

        RH
        06/25/2020
        Rob H.
        United States United States
        Comfortable Underwear

        I had purchased a pair of the underwear with a package. I got XL and absolutely loved them. Most comfortable ever. So I ordered a 5 pack. When I received them I tried wearing two pair and found them pretty much the same however they were much longer at the waist, forcing me me to fold the waist over. So last week I sent back three pair and asked for Large. I sure hope they are as comfortable as I had before.

        BM
        06/17/2020
        Bruce M.
        Canada Canada
        Another Purchase

        I have purchased a number of Unbound items to date, these seem exceptional so far!

        PG
        06/09/2020
        Paul G.
        United States United States
        Excellent

        Most comfortable underwear I’ve ever worn. Had them for about a month. Haven’t had a chance to hand wash/dry because I haven’t traveled back to Nam yet. That’s why I bought them, for travel. But they’re better than my originals so I just wear these. Take the plunge. I’m 5’9” and 160 lbs. L fits me perfect. Don’t pollute;)

        KS
        05/28/2020
        Kynan S.
        United States United States
        Worth it!

        I wear jeans every day and work out side often. These wool boxer briefs prevent chaffing when the day is hot and the work is sweaty.