Naturally Sustainable
Machine Wash & Dry
Naturally Anti-Odor
Breathable & Wicking
If you are looking for ultimate comfort and performance, you’ve hit the jackpot. These lightweight merino wool boxer briefs will keep you cool and dry while providing the support and comfort you need. Great for hiking, biking, running, or just going to the office, these boxer briefs will become an everyday staple of your wardrobe. Did we mention no stank? Just lightweight and comfortable for all conditions and activities.
Fabric
- Fiber Content: 100% Merino Wool
- OEKO-TEX® STANDARD 100 Certified
- Woolmark® Certified
- Knit: 170 g/m2 Lightweight Jersey Knit
- Microns: 17.5 Micron Fibers
- UPF Rating: 25
- Total Easy Care: Machine Wash and Dry
- Wool Source: Australia
- Imported.
Features
-
Covered Waistband: Merino next to your skin
- Flat Lock Seams: Prevents Chafing
- Inseam: 8in of leg coverage
- Layer Type: Base Layer
- Fit Type: Athletic - fits close to the skin for support
-
Runs True to Size - If you like a more regular, looser fit, try sizing up
- Weight: Size Large = 3.5 oz. (100 grams)
- Style #: 702
Uses
- Ideal Seasons: Spring, Summer, Fall, Winter
- Activities: Everyday Wear, Hiking, Camping, Biking, Running, Fishing, Hunting, Snowsports
- Temperature Recommendations: 30°F to 60°F and up while active, 60°F and up while inactive - Learn More
Care
Washing and Drying Instructions - Learn More
- Turn Inside Out
- Machine Wash Cold: Gentle cycle with like colors
- Detergent: Mild or wool-specific
- Tumble Dry: Low heat
- Storage: Place in an airtight container when not in use for long periods of time
- Do NOT Use: Fabric softener or bleach!
Product Story
Acadian [uh-key-dee-uh n]
Acadia National park is the only National Park in the North East. Complete with ocean, mountains, forest and lakes, this is one of the most impressive places to spend a few days. Try out our Acadian Boxer Briefs while cross country mountain biking the island or hiking one of its many trails.
Our Guarantee
- 30 Day Satisfaction Guarantee - Return Policy
- 1 Year Warranty
- Extended 2 Year Warranty with Registration - Learn More
- New Hampshire, USA Customer Service
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LIGHTWEIGHT MERINO WOOL
- 170 g/m
- 100% Australian Merino Wool
- Machine Wash & Dry
- UPF 25
Our lightweight Merino wool is a versatile, all-season fabric that's ideal for hiking, running, biking, camping, and everyday wear. Perfect as a warm weather single layer, or as an underlayer in cooler conditions during spring, fall, and even winter. You can learn more about our different Merino fabric weights here.
Temperature (°F)
Activity Level
Benefits of Merino Wool
Like the woolverino 145 briefs, runs way too tight and at least a full size down. I don't expect I'll be wearing these much.
the best to wear, for white collar or blue collar work!
Hi there! We're thrilled to hear you find our Merino Wool Boxer Briefs versatile for any work environment. Thanks for the great review! Thank you so much for the fantastic feedback. We’re thrilled to hear our Lightweight 100% Merino Wool Boxer Briefs are your go‑to choice, whether you’re suited up for white‑collar work or putting in the hard hours on the job site, or out in the wilderness. Merino is made to move with you, keep you comfortable, and stay fresh all day, and it’s great to know they’re delivering exactly that for you. We appreciate you taking the time to share your experience and are glad to have you in the Minus33 crew.
Fit is excellent and these are very comfortable. I bought a pair to try out for backpacking. Great for preventing chaffing.
Thanks so much for the great feedback. We’re glad to hear the fit worked out perfectly and that the shirt kept you comfortable on your backpacking trip. Merino wool really shines when it comes to preventing chafing, so it’s great to know it delivered for you. We appreciate you giving it a try and hope it continues to serve you well on future adventures.
- 5 stars: 66 (83%)
- 4 stars: 9 (11%)
- 3 stars: 0 (0%)
- 2 stars: 3 (4%)
- 1 star: 2 (3%)
Like the woolverino 145 briefs, runs way too tight and at least a full size down. I don't expect I'll be wearing these much.
the best to wear, for white collar or blue collar work!
Hi there! We're thrilled to hear you find our Merino Wool Boxer Briefs versatile for any work environment. Thanks for the great review! Thank you so much for the fantastic feedback. We’re thrilled to hear our Lightweight 100% Merino Wool Boxer Briefs are your go‑to choice, whether you’re suited up for white‑collar work or putting in the hard hours on the job site, or out in the wilderness. Merino is made to move with you, keep you comfortable, and stay fresh all day, and it’s great to know they’re delivering exactly that for you. We appreciate you taking the time to share your experience and are glad to have you in the Minus33 crew.
Fit is excellent and these are very comfortable. I bought a pair to try out for backpacking. Great for preventing chaffing.
Thanks so much for the great feedback. We’re glad to hear the fit worked out perfectly and that the shirt kept you comfortable on your backpacking trip. Merino wool really shines when it comes to preventing chafing, so it’s great to know it delivered for you. We appreciate you giving it a try and hope it continues to serve you well on future adventures.
⭐⭐⭐⭐⭐
I've tried a lot of different underwear over the years, and the Minus33 Lightweight 100% Merino Wool Boxer Briefs are some of the most comfortable I've worn. I work long shifts—often 12 to 14+ hours a day—in a duty uniform, and comfort matters when you're on your feet all day.
The merino wool does an excellent job managing moisture and regulating temperature. In hot, humid weather, they stay noticeably drier and more comfortable than cotton, and in cooler weather they provide just enough warmth without feeling bulky. They also breathe well, which helps reduce chafing and discomfort during long days.
One of the biggest advantages is odor control. Even after a long shift, they stay fresher than synthetic or cotton alternatives. The fabric is soft, comfortable against the skin, and doesn't have the itchiness some people associate with wool.
The fit is supportive without being restrictive, and they stay in place throughout the day without constantly needing adjustment. After switching to merino wool, it's hard to go back to traditional underwear.
I've had such a positive experience with these boxer briefs that I've gradually added more Minus33 products to my wardrobe. If you spend long hours working, traveling, hiking, or simply want more comfort than cotton provides, these are well worth trying.
great material, love them!
Great fit
Excellent feel! Worth the price for sure
Excellent feel! Worth the price for sure
Excellent feel! Worth the price for sure
Got what i paid for 👍
Super soft and comfortable. Excellent for activity and fitness outside and in. I’m 30” waist and lean, and I chose a small, which works great for me. Has an athletic fit.
Best underwear there is.
Great product
great product
I’ve switch from cotton and polyester to these exclusively. They hide stink and absorb sweat. Crotch rot isn’t a problem no more. Spent 4 days at deer camp in the cold and heat of the desert. Didn’t feel I needed to change my underwear once. Hides the stink so well that when I got home and took them off I was like I need to shower!!! Great product. Supports extremely well too
Waist band doesn’t rub or itch. Material is light, breathable and comfortable. They don’t rise up when I’m working hard or ever. Straight up best undies I’ve ever worn.
Jesse,
Thank you for your glowing review of our Lightweight Acadian Men's Boxer Brief! We're thrilled to hear that our waistband is comfortable and doesn't cause any irritation. We take pride in using high-quality materials like 100% Merino Wool to ensure our products are lightweight and breathable. It's great to know that they also stay in place during physical activity. We appreciate your feedback and are happy to provide you with the best underwear experience.
-The Minus33 Team
Good fit. Very comfortable
Really comfortable and very soft. I am between sizes and I sized up... I am a 33-34 waist and went with the large as opposed to the medium. I think either would have worked, but glad I went with the large.
Hi there,
We're so happy to hear that you decided to give our Acadian Men's Boxer Brief a try and that you found them comfortable and soft. We understand the struggle of finding the right size, so we're glad that the large worked out for you. Thank you for taking the time to leave a review, we truly appreciate it!
Stay Cozy!
Sierra S
Minus33
So far these are amazing underwear/briefs. They sit flat on legs, don't bunch up. Great for work and play, I wear to work at office/desk and play, ski touring, hiking. Have worn a few days in a row when I had to... Never again cotton. Haven't had the chance to use in summer hot, but know at 70 degrees these still are my go to underwear.
Hi Michael, thank you for your positive review! We're glad to hear that our Lightweight - Acadian Men's Boxer Brief is working well for both work and play. We also appreciate your feedback on the comfort and versatility of the briefs. We hope they continue to serve you well, and we're confident they will also be great in warmer weather. Thank you for choosing our product and for your support. Have a great day!
Best
~Sue
Large wear holes along bottom of crotch area have formed in these boxers which used to be my favorite pair. I've only had them for a little over a year and wear them about every other week. They are washed on a delicate cycle with other merino wool items. Very disappointing considering the price. I have a Smartwool pair that have lasted twice as long with no wear holes.
N.F,
Thank you for taking the time to leave a review for our Lightweight - Acadian Men's Boxer Brief 100% Merino Wool. We're sorry to hear about the issue you experienced with holes forming after a year of normal wear and care.
We take the quality and durability of our products very seriously, and we're disappointed to hear that your favorite pair did not meet your expectations. Our team would love to gather more information and help find a resolution for you. Please reach out to us at info@minus33.com so we can assist you further.
In the meantime, we recommend following the care instructions on the label and avoiding any harsh washing methods to prolong the lifespan of your merino wool items. We also appreciate your feedback and will pass it along to our product development team for future improvements.
Thank you for being a valued customer and for bringing this to our attention.
Best,
The Minus33 Customer Service Team
Don’t know you sent me wrong size
Dane,
Thank you for taking the time to leave us a review. We apologize that you received the wrong size on your order. Please contact our customer service team at 603-968-3351 so that we can get you the correct size.
We apologize for the inconvenice.
-Steven D
I buy 30 inch trousers for my 29 inch waist but for underwear I like to buy L/XL sizes so I can sleep comfortably.
Started with size L, barely squeezing the waist, ok length, only longer than average briefs.
For additional comfort when sleeping I bought a single pair of XL briefs, nice looseness around the waist but it is simply too long, like a pair of long shorts.
Strongest point is that this is the lightest pair of 100% merino wool underwear. Other companies' product or other products from this company are inferior because they are heavier or have additional plastic.
Weakest point is that as the size increases for less tightness around the waist, the underwear gets longer.
Hi there,
Thank you for taking the time to leave a review for our Lightweight - Acadian Men's Boxer Brief. We're glad to hear that you appreciate the lightness of our 100% merino wool fabric. We also understand your concern about the length and sizing of our underwear. We appreciate your feedback and we will definitely take it into consideration for future product development. If you have any further questions or concerns, please don't hesitate to reach out to our customer service team. We're always here to help make your shopping experience as comfortable as possible.
Best,
-- Becky N
I bought two pair to bikepack across Norway. Look great, durable and don’t stink. Minus33 products are now my go to. I have the hat, socks and base layers too.
Donald,
Thank you for taking the time to leave such a positive review! We're thrilled to hear that our Lightweight Acadian Men's Boxer Briefs were the perfect choice for your bikepacking trip in Norway. Our 100% Merino Wool fabric is not only durable, but also naturally odor-resistant - making it ideal for outdoor adventures. We're glad to have you as a satisfied customer and hope you continue to enjoy our Minus33 products.
Thanks Again,
-Steven D
I've owned a few different brands of merino wool underwear. This brand seems far more durable.
Hi Jonathan,
Thank you for sharing your experience with our Lightweight - Acadian Men's Boxer Brief! We're thrilled to hear that it's been more durable compared to other brands you've tried. We take pride in using high-quality materials to ensure our products last.
If you have any other feedback or questions, please don't hesitate to reach out. We're always here to help.
Jeannie T.


