REI Co-op  Merino Boxer Briefs - Men's

I got these for my partner who loved them instantly, so we got several more pairs over the next few months. The first pair, ordered Nov 2023, are now disintegrating between the thighs 8 months later. Despite this, he says they're the most comfortable underwear he's ever owned and they stay feeling fresh for a while between washes. They're worth it if you get them on sale but I wouldn't spend $40 per pair in the future.

Almost perfect but the printed tag eventually breaks down and itched your back in a most irksome way. Otherwise great

I love merino underwear and wear it all 4 seasons. My normal brand is Icebreaker, and each pair in my rotation has lasted about 2 years before the wool wears out. Tempted by the lower price tag, I added one pair of REI into the rotation 4 months ago but the waistband has already started losing elasticity after a couple months. So even with a higher initial price, the Icebreaker gets more lifetime per dollar.

Reviewed these when I first received them several months ago. At the time, I was not sure how they would wear. (I wear each pair maybe once a week--around town, easy hiking, etc--so, not extreme use.) That said, they are extremely comfortable. The fabric seems to have hit a sweet spot. I got some of the same style in all nylon at the same time, thinking they might be better for hot weather. Wrong !! These are definitely preferred every day--even now, when it is definitely hot. Style depends upon the individual. For me, These are a clear winner !! (So much so that I decided to leave this second, updated review.) Now I just have to hope they do not "improve" them into something less suitable for me.. :)

Love the golden olive color. Fabric feels luxurious. I use the 100% merino boxers from Houdini Sportswear and these are not drastically different in terms of look and feel, but I do have a preference for the Houdinis, even if I prefer the colors of the REIs. In terms of fit, like they were tailored. I bought several mediums hoping the reviews would not apply to my case and I was right. I’m 5’11” 178lbs, wear pant waist 33” or 34” depending on the brand of pants, and the medium boxers fit great. The legs are also spot on in terms of fit. Above all, feel great that the wool is allegedly mulesing-free and made in a fair-trade factory. I’ll have to take REIs word on that. Wish there was a way to trace the wool, like how some down products are source traceable.

Trying to transition all of my underwear to wool and these were more affordable than Smartwool and ice breaker. Very comfortable and don't retain odor. My only gripe is the legs are really loose compared to the other brands causing some bunching while biking and running. They are pretty comfy for non athletic wear so I kept one pair and returned the others

I have a 35” waist. I purchased medium which were just a tad bigger than I’d like, decided to wash warm and dry on low (as per instructions) they fit perfect after! I have a pair of smartwool and icebreakers these are better in every way. Nice thick waistband but unlike SW they don’t fold in on themselves. Leg length is longer than both SW and IB but not so long they show with athletic shorts. The fly is actually functional unlike IB which is way to small and SW fly is just a little to small! All in all they are great and hope with proper care they will hold up!

I am pretty overweight and have had problems chafing … not with these. 9 miles in 80 degree weather not a single problem. Absolutely incredible. Its like wearing a cloud. Must have for hiking.

I like Merino wool base layers for extended backpacking or strenuous activities because they do not retain odor and don't leave that odd feeling on my skin after an extended wear like some synthetics. I tried the REI brand finally and the fit is the best of what I've tried. That SW brand was to tight at the same sizing. Like so much I purchased two more pair while they were on sale.

I was excited to try out these boxer briefs. I typically use wool tops for backpacking and travel, but the 100% wool underwear I have tried in the past worn out too quickly. As these use a mix of core-spun nylon wrapped in wool and lyocell, I haven’t seen any wear issues even after many washings. The fabric is silky smooth, itch free, breathes well and the wool does help with odor control. The waistband is sung without being too tight and is just the right width. On some bands the waist bands have gotten so wide and thick that they get sweaty when its hot out. The boxer-brief fits snug, but without any compression. All this makes them a great everyday pair. For active use I prefer a pair with a level of compression. I was disappointed to see that the washing instructions stated: “Do not twist or wring”. Sorry, but that is how I get the water out of clothes when backpacking and traveling. My only other issue with the Co-op merino boxer briefs is that they are a bit long in the leg and therefore they show when I’m sitting in some of my shorts. Other pluses for these boxer briefs are that they are Fair Trade Certified and use Responsible Wool Standard wool. In summary, I recommend them for everyday use (with long pants), but I’m still looking for my perfect pair of wool underwear for backpacking and travel.