REI Co-op Merino Boxers - Men's
Stay dry on the trail in the soft, breathable and naturally odor-resistant REI Co-op Merino Boxers for men. They're made to keep you comfy throughout the day.
- Ultrafine 150 g core-spun nylon is wrapped in merino, offering a soft feel without any itchiness
- Merino wool naturally breathes, wicks away sweat, dries quickly and resists odors, making it an ideal multiday trip companion
- Flat seams and merrow-stitch construction eliminate chafing
- Soft elastic waistband keeps underwear in place
- Shaped, functional fly
- Machine wash warm; tumble dry low
- Made in a Fair Trade Certified™ factory
- REI Co-op brand is certified to The Climate Label; we actively fund efforts to reduce carbon emissions across our business and support climate projects around the world
Imported.
View all REI Co-op Men's Boxers| Best Use | Multisport |
|---|---|
| Underwear Style | Boxer |
| Fabric | 48% merino wool/32% TENCEL lyocell/15% nylon/5% LYCRA spandex |
| Moisture Wicking | Yes |
| Quick Drying | Yes |
| Fly Opening | Yes |
| Inseam (in.) | 4.5 inches |
| Gender | Men's |
| Sustainability | Fair Trade Certified™ factory From a Climate Label Certified brand |
| XS | S | M | L | XL | XXL | XXXL | 24 IN Waist | 26 IN Waist | 28 IN Waist | 30 IN Waist | 31 IN Waist | 32 IN Waist | 33 IN Waist | 34 IN Waist | 35 IN Waist | 36 IN Waist | 38 IN Waist | 40 IN Waist | 42 IN Waist | 44 IN Waist | 46 IN Waist | 48 IN Waist | 50 IN Waist | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chest | 35 | 36 - 38 | 39 - 41 | 42 - 45 | 46 - 49 | 50 - 53 | 54 - 57 | |||||||||||||||||
| Sleeve Length | 32 | 32.5 | 33 | 33.5 | 34 | 34.75 | 35.5 | |||||||||||||||||
| Waist | 27.5 | 28 - 30 | 32 - 34 | 36 - 38 | 40 - 42 | 44 - 46 | 48 - 50 | 24 | 26 | 28 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 |
| Hip | 33.5 | 34.5 - 36.5 | 37.5 - 39.5 | 41 - 43 | 44 - 46.5 | 47.5 - 50.5 | 51.5 - 54.5 | 32 | 33.5 | 34.5 | 36.5 | 37 | 37.5 | 38.5 | 39.5 | 40.25 | 41 | 43 | 44 | 46.5 | 47.5 | 50.5 | 52.5 | 54.5 |
| Inseam | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
Sizing Notes
Measurements are stated in inches unless otherwise indicated. Size chart values represent body measurements, not garment measurements.
SHORT: Some pants are available in short sizes, which generally means an inseam that is 2.5 inches shorter than regular sizes.
TALL: Some pants, shirts, jackets and parkas are available in tall sizes, which generally means an inseam that is 3 inches longer and a rise that is 1 inch longer, a shirt or jacket body that is 2 inches longer, a parka body that is 2.5 inches longer and sleeves that are 2.5 inches longer than regular sizes.
Capri or cropped pants have an intentionally shorter inseam—reference the technical specs instead of this chart.
Inseam is measured to the floor.
Better gear is built together
From feedback to field testing, all of our gear is dialed-in by REI Co-op members. Their adventures informed every stitch and detail—making for better, longer-lasting gear.
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Very Good Nice Fit Boxers
The boxers arrived and I decided to hand wash them to see if the red clay color would run. It did not which is a bonus. I love the reddish/brown color, and it is a plus that no special washing or handling had to be done. The elastic waist band is an excellent fit, not too tight or too loose. I was worried that due to the width of the waist band it would be really tight. Not at all. Overall the texture and feel is very smooth and soft. During hot days the boxers were breathable and still nice fitting. I have worn them 4 times and really like them with no negative aspects. I would love to see if they will have an organic option in the future which would make these an excellent option ( 5 stars )
Real nice boxers, they just run too large
These boxers feel great and was looking forward to them. Unfortunatly the medium boxers seem to fit more like larges so they didnt fit me, no smalls in stock so i was out of luck. The medium size waist band is about 2 inches wider than all my other medium boxers from various brands. Im a 31 inch waist typically for pants for yall referance.
No chafing
Great boxers with a great fit. I’ve taken them out to three trails, at work, and on a run so far with no bad experiences whatsoever. I usually experience quite a bit of chafing with regular Hanes or fruit of the loom boxers but this Merino fabric really made a difference. They do run fairly large amongst other small size boxers but only around the legs, the waist runs the same. I’ve inserted a photo comparing to a regular sized Kirkland water bottle for reference. Overall would recommend to a friend.
Best Merino Boxers Of All Time
I've been on a wild hunt for the greatest pair of merino underwear, and let me tell ya folks...these might be them. I've tried ExOfficio (both boxer and boxer briefs), Smartwool, Wooly, Patagonia (not merino, but still), and none compare to these. REI knocked it outta the park on these bad boys. They do run a bit large though - for reference, I'm a 34 waist (6' and 195 lbs) and the mediums fit me perfectly.
Poor product
I bought these because I love merino wool Products but had not bought rei brand before. Unfortunately, out of the 3 pair I bought, only I is salvageable and wearable now. The other two had holes in them and literally began to tear after 4-5 washes.
The best merino boxers
I have merino boxers from 4 different brands including REI. They all have good fit and comfortable fabric. The differentiator is the waist band, which stays flat and comfortable on the REI boxers. The others are prone to the waist band rolling over on itself, making it a thicker and narrower strap that can cause discomfort.
Didn’t last long
I wanted to like these merino wool boxers from REI, but they started to fray around the inseam and I had to return them. Great while they lasted (4 months). I hope REI takes a look at their longevity and does something about the inseam. Bought two pairs and had the same problem with both.
The best boxers I've worn
The perfect boxers-- fabric is a unique blend of materials that creates some of the softest, best boxers I've worn. I have sensitive skin and it's perfect for them as well. I'm between a Medium and a Large generally and the mediums fit perfectly with generous space (the larges were huge around the waist though, I ordered both). Good stretch too. Hope REI never discontinues these!
Excellent, but they'll stop making them per usual.
Like all the good premium boxers REI will surely stop making them. Ridiculous trend. At least they're consistent. Better get some now before they're gone forever.
Great technical boxers for travel or everyday use.
These are great. They're what I'd expect from wool boxers in terms of performance. They are comfortable, not too thick, and stay dry even when active. I got a size small and the fit is great. Unlike most of my other boxers (Fruit of the Loom, and Ex Officio) these don't have a lot of excess material, which means less bunching, less material to soak up sweat, but still loose enough to be comfortable and to have freedom of movement.