Best Merino Wool T-Shirts (2026): Ibex, Icebreaker, Unbound Merino

LoaderSave StorySave this storyCommentLoaderSave StorySave this storyFeatured in this articleBest Men’s Merino T-ShirtProof 72-Hour Merino T-ShirtRead more$78 Huckberry (Classic Fit) Wool&Prince Signature TeeRead more$80 Wool & Prince (Crew) Best Merino Wool T-Shirt for TravelUnbound Merino Merino T-ShirtRead more$95 Unbound Merino (Men's) Best Women’s Merino Wool T-ShirtArtilect UtiliteeRead more$90 Artilect (Men's) I was born and raised in Southern California, land of the perpetual T-shirt. I think I was about 24 before I realized there were, in fact, shirts other than the T-shirt. Why would you want to wear anything other than a soft, comfy, short-sleeve T-shirt? I used to wear cotton T-shirts, and I still do sometimes, but somewhere along the line I discovered merino wool. Merino wool is much more comfortable than cotton, and it’s thermoregulating, which means you'll stay cool even in the summer heat. The best part? You can wear merino T-shirts for days and they won't smell. These are the best merino wool T-shirts I've tried. For simplicity, I've linked the crew-neck versions, but nearly all of these are available as V-neck T-shirts if you prefer. Want more than a T-shirt? Check out our full guide to all the best merino wool clothes. Once you’ve got your base layers sorted, be sure to read up on the Best Rain Jackets, Best Puffer Jackets, and Best Hoodies. Updated April 2026: I've reorganized this guide, added new t-shirts from Merino.Tech and Wool & Prince, and a new section on caring for your merino T-shirts. I've also updated links and prices throughout. Honorable MentionsWhy Are Merino Wool T-Shirts So Great?Are Merino Wool T-Shirts Worth It?How to Care for Your Merino Wool T-ShirtHow Long Can You Wear a Merino T-Shirt Without Washing It? Really?Best Men’s Merino T-ShirtCourtesy of HuckberrySave to wishlistSave to wishlistProof Huckberry's Proof-brand 72-hour Merino T-Shirt is my favorite all-around merino tee. The cut and style are not overly sporty, making it more versatile than some others, and it's incredibly soft even after six months of wear and washing. At 87 percent 150 gsm superfine merino wool (16.5 micron) and 13 percent nylon, this T-shirt makes a great starter for those new to merino wool. There's enough nylon to be stretchy, making it suitable for everything, from everyday wear around town to a trip to the gym. The nylon does mean it'll smell sooner than 100 percent merino T-shirts (I find 72 hours to be a very accurate name), but it makes it a touch more durable than a 100 percent merino tee. I also like that this shirt comes in a wide variety of colors, more than any other shirt in this guide. Proof uses the exact same fabric to make long sleeve tees, as well as polos and henleys, if that's your bag. Courtesy of Wool & PrincePhotograph: Scott GilbertsonChevronChevronSave to wishlistSave to wishlistWool&Prince Wool & Prince's Signature Tee is a close runner-up for the best merino T-shirt. Like the Proof shirt above, the cut is casual and the color I tested (gray heather) did not have that shiny look that sometimes afflicts merino T-shirts. This shirt is hard to tell from your typical cotton tee, at least until you put it on. Once you do, it's much softer and more comfortable than any cotton T-shirt, and of course you get the benefits of merino wool. The Signature Tee is made of a blended fabric that's something like Nuyarn, with a 78 percent merino, 22 percent nylon blend. I wish the merino count were higher (Wool & Prince does have a 100 percent merino tee), but that's about my only complaint on this one. It's a soft comfortable T-shirt I can, and do, live in. I've found that the Signature Tee resists odors quite well, especially for a blended shirt. I have no trouble going several days without a wash. It does seem to hold water a little more than some of the others, but not enough to matter much in most cases. Wool & Prince has a wide selection of colors and sizes available, as well as V-neck, long sleeve, polos, and henley versions. Courtesy of Unbound MerinoSave to wishlistSave to wishlistUnbound Merino Unbound Merino's T-shirt has long been a favorite of WIRED readers. It's the most popular T-shirt in our merino guide and well loved by travelers. It's very soft, and because it's 100 percent merino wool it'll stay odor free longer than any other shirt in this guide. It's also lightweight and packs down to a tiny roll, which is perfect if you're looking to simplify down to one bag (really, is there any other way to travel?). I love how soft these shirts are, and they dry the fastest of any merino T-shirt I've tested. My only gripe is that they they're very lightweight merino (190 gsm, superfine 17.5 micron) and seem to be more prone to small holes than other merino tees in the guide. It's not enough to stop me from recommending them, but do know that Unbound's T-shirts need to be babied a little. I recommend hand washing and line-drying these when you can. Courtesy of REISave to wishlistSave to wishlistArtilect This is my favorite T-shirt. In fact, I'm wearing it right now underneath my giant hoodie. Artilect uses a blend of 150-gsm Nuyarn merino wool—what you might call performance merino, that is spun around a durable inner fiber—and Tencel, which is a light, silky cellulose fiber. The result is a T-shirt that is shockingly lightweight, comfortable, and versatile. I wear the Utilitee while climbing and hiking, as well as while typing at my desk, and it's also crisp enough in appearance to wear to work events (if your boss is cool about it). When I go rock climbing, it stays soft and warm in the shade, then magically stays light and breathable when I break through the tree line and the temperature suddenly rises by 15 degrees in direct sunlight. The flat seams didn’t cause chafing on my shoulders or waist through backpack straps or a harness, and even though it’s a flattering slim fit, it didn’t constrict the movement of my shoulders or arms in any way. —Adrienne So Courtesy of IbexSave to wishlistSave to wishlistIbex I see what you did there, Ibex. Clever marketing aside, Ibex's GOAT tee really is one of the best merino wool T-shirts I've tested. The 150 gsm weight fabric is 89 percent merino and 11 percent nylon and woven using a process known as core spinning. That means the merino is on the outside of the nylon and (at least, in theory) only merino is ever next to your skin. Wear over time might change that, but in my experience these shirts do as well as 100 percent merino when it comes to temperature regulation and odor resistance. What I happen to love the most about this shirt is the fit, which is very casual, without the sporty look that so many Ibex shirts have. This is a great one for travel, around town, or just lounging around the house. There's a long sleeve version as well, and a women's tank top, which goes in and out of stock. Courtesy of Taylor StitchSave to wishlistSave to wishlistTaylor Stitch If I could have only one merino T-shirt, it would be this one. It's the softest, most luxurious of all the tees on this page. Because it's 95 percent merino wool, this shirt will go quite a while before it starts to smell. Everyone is different of course, but I find I can routinely get five days out these. Obviously if it's hot out and you're sweating a lot you might get less than that, but not much. Either way, it's nice and quick-drying. I find this shirt too nice to work out in, but it's perfect for around town, and it's my go-to any time I want to travel superlight. My only real gripe here is the very limited color selection. Taylor Stitch typically has a heather blue and heather black available all the time, and every now and then some other colors will be available on a very limited basis. Courtesy of IbexSave to wishlistSave to wishlistIbex This Ibex shirt is my hiking uniform. I don't think I've hit the trail in anything else since I got this Ibex shirt. Ibex is deservedly legendary for its wool, especially its base layers (see our guide to the best base layers and our merino wool guide). This T-shirt fits nicely into that mold, with a little slimmer cut that makes it great for layering in the outdoors. It's still loose enough to be comfortable, but when the weather turns you can slip a fitted mid layer over it without any trouble. The fabric here is 83 percent merino, 12 percent nylon, and 5 percent elastane, which gives it a good amount of stretchiness. The stretch, along with the gusseted underarm, give this shirt a nice range of motion that makes it ideal for active outdoor pursuits like hiking and climbing. I also like that you get a UPF 35+ rating for some sun protection outdoors. The Ibex also has flatlock seams on the shoulders to cut down on chafing when wearing a backpack. But honestly, the flatlock part (that's a method of stitching that makes the seam as flat as possible) isn't what's helpful here. It's that the seams are forward, off the shoulders enough that they aren't where your pack straps will rub. Like the other Ibex picks, these fluctuate in and out of stock. Courtesy of Minus33Save to wishlistSave to wishlistMinus33 Minus33 is one of our favorite brands for mid weight and heavier merino (the company is based in New Hampshire so they understand real winters), but I also love this lightweight T-shirt. It's my favorite shirt for working out. It uses a core-spun hybrid thread that is 84 percent merino wrapped around 13 percent nylon, with 4 percent Spandex. It's 145 gsm, and that little bit of synthetic allows it to stretch better and makes it a little more durable than pure merino. It's soft and comfortable—not too hot in the sun (it also has a UPF rating of 20), and warm enough when it's cool. It's also durable (I've been rolling jiujitsu in this shirt for years and it's fine). It's machine washable, and you can even throw it in the dryer. No need to baby this T-shirt. Courtesy of QuinceSave to wishlistSave to wishlistQuince Merino T-shirts aren't the cheapest, and if you're looking to build a wardrobe around them it can add up quickly. That's one of the reasons I like Quince's All-Season Base Layer Tee. It's affordable and comfortable. This Quince shirt is 100 percent extra-fine merino wool jersey (165 gms) that's perfect even on the warmest summer days where I live (admittedly, I think the hottest it got this summer was 92F). I like the relaxed fit. It's neither skintight technical, nor overly loose and baggy. It fits like a T-shirt is supposed to. (Reviews editor Adrienne So has the women's version and thinks it's oversized.) That's what Quince does well in a number of categories: offer a solid, no-nonsense, competitively priced T-shirt that fits well and feels great. As an added bonus, Quince offers free shipping and free returns for 365 days, which is the best shipping offer I've seen. Photograph: Martin CizmarPhotograph: Martin CizmarChevronChevronSave to wishlistSave to wishlistMerino.Tech I purchased one of these inexpensive Merino.tech shirts on Amazon before a recent vacation, where my packing space was at a premium because I was traveling in Europe for 10 days with only a carry-on. I wore it for the first four days of my trip and I ordered another one as soon as I got home. I've owned merino T-shirts from Icebreaker and Smartwool, and this shirt is heavier and more susceptible to pilling. The weave is a little looser, and the stitching isn't as precise. But at $36, it's hard to beat—you can buy three of these without blinking and won't feel like you have to baby them. It runs a little small, and I don't like to worry about warm water washes, so I bought a size up and have subsequently washed it along with my cotton. I've even tossed one of them in the dryer for a few minutes. It now fits like my typical size. There's no itch and it resists odors like more expensive merino shirts. —Martin Cizmar Courtesy of IbexSave to wishlistSave to wishlistIbex Ibex Woolies Pro Tech base layer crew is the best lightweight merino base layer we've tested. If you want a hard-wearing shirt, this it it. Woolies are Nuyarn, which is 85 percent merino wool and 15 percent nylon—the merino wool is wrapped around a nylon core, which increases the warmth while being lighter (5 ounces for the men's large) and more durable. This is my top pick for all things technical. It's quite tight, which makes it great for layering. It's my go-to for bring hiking, backpacking, and winter in general. I also love the Woolies Pro Tech Bottoms ($115), which are what I bring backpacking in all but the warmest of weather. Aside from comfort and warmth, a big part of the reason we recommend Woolies is that they last. Ibex is what passes for a heritage company in this space; the company was founded in 1997 and has been cranking out merino garment for a long time. Adrienne has Ibex merino base layers that have lasted 20 years without a problem. Properly cared for, Woolies will keep you comfortably warm for years to come. There are a lot of merino wool T-shirts on the market. We've tested dozens, and many of them are very good, but not quite right for a top spot in this guide. Here a few more that we've tried and liked. Courtesy of SmartwoolSave to wishlistSave to wishlistSmartWool Smartwool's T-shirts are soft and comfortable, though they do tend to run large, especially in the cut of the neck. Courtesy of Minus33Save to wishlistSave to wishlistMinus33 This 100 percent 170-gsm merino T-shirt is comfortable, with a loose cut that works well over a base layer on cool mornings or as a T-shirt during warmer parts of the day. Courtesy of IcebreakerSave to wishlistSave to wishlistIcebreaker Icebreaker has a variety of merino T-shirts, but the best are the 100 percent merino that we've linked to here. These shirts are slim fitting, making them good for active pursuits. They also offer some fun outdoor-themed prints that change seasonally. There are often good deals to be found on closeouts sales of last year's prints. Courtesy of WoolxPhotograph: Scott GilbertsonChevronChevronSave to wishlistSave to wishlistWoolx Woolx’s Endurance tee is 85 percent merino wool, 12 percent nylon, 3 percent spandex. The result is a very durable T-shirt that's held up well through repeated washings and wear. I've been using it under my gi for jiujitsu, and it does a great job soaking up sweat, but it's also held up to the wear of a heavy fabric rubbing on it without disintegrating, like a more fragile merino T-shirt might. Merino wool makes the perfect T-shirt because it's soft, comfortable, and thermoregulating, which is a fancy term for “keeps you cool in the heat, warm in the cold.” The softness comes from the fact that merino sheep have thinner, softer wool than those itchy sweaters of yore. Merino sheep evolved to stay comfortable across a wide range of temperatures, which is why merino wool is so good at doing the same for you. Wool is sustainable too. One sheep can produce 4 to 5 pounds of wool per year. Thanks, sheep. I also love merino wool T-shirts because they're antimicrobial and antibacterial (both properties are inherent in wool), which is why they don't smell after you wear them. Keep in mind that this declines as you up the nylon percentage, so a pure merino T-shirt, like the Unbound Merino men’s T-shirt, can be worn more than some of them others before it starts to smell. Wool is also naturally wrinkle resistant, which is nice for traveling. We are talking about $80 (or more) T-shirts here, so this is valid question. I think merino T-shirts are worth the investment. They offer considerable benefits over cotton and other natural fibers, as well as synthetics. Merino offers great temperature regulation, excellent moisture wicking, and they don't smell, which means you can wear them more and don't need as many of them. Three merino T-shirts in your wardrobe will last you as many days as 10 cotton shirts, so from a financial angle it's a wash. Here's a quick rundown of some of the benefits of merino wool: Odor-resistant: One of merino wool's superpowers is that it’s naturally resistant to odors. This means you can wear a merino T-shirt multiple times before needing to wash it. How many times? I'd say that depends where you are and what you're doing, but usually three to seven times. Our top pick is, after all, called the 72-hour shirt, because that's how long you can generally wear it before it needs a wash. See below for more on this debate. Thermoregulation: Merino wool can keep you warm in cold weather and cool in warm weather. Yes, there are limits to this—no T-shirt is going to keep you cool on a hot summer day in the tropics—but merino far outshines cotton and synthetics. Moisture wicking: This is an important one for anything you're wearing while hiking or at the gym. Merino wool is excellent at moving moisture away from your skin, through the fabric, where it can evaporate quickly. This is why it makes such a good base layer. Versatility: Merino wool shirts are great for travel, hiking, backpacking, and as everyday shirts for around town. They can also be used year-round, even in the cold, as part of a good layering system. Packable: Merino wool T-shirts tend to pack up smaller than cotton and many synthetics, meaning they take up less room in your bag when traveling. Combine this with the odor resistance above and your have the ultimate travel T-shirt. The one place cotton and nylon blend T-shirts might possibly have an edge is durability. Merino wool isn't really any less durable in my experience, but it can pill, which is where the wool fibers break and tangle together in tiny knots, forming little balls on your T-shirt. Some pilling isn't a big deal, but if a T-shirt pills a lot you know it's made of very made of short wool fibers, rather than longer continuous fibers. Unfortunately, most manufacturers don't advertise the length of their spun fibers, which is where our testing comes in. I hate pilling, and I have eliminated all the T-shirts that have pilled on me, except one, which I like anyway (the pilling is not that bad). Most merino T-shirts will have care instructions. Most likely it will be to wash cold and lay flat to dry. The latter is important, as hanging wool to dry will stretch it out (because of the water weight). While most merino labels say the garment can be machine washed, my experience has been that handwashing merino will extend its life. This is particularly true of very lightweight (150 gsm) T-shirts. See the individual reviews above for notes on long term durability, which is part of what I test. Do you really need to baby your merino T-shirts? Well, if you want them to last many years, then yes, but there are degrees of babying. A good rule of thumb is that the higher the percentage of merino, the more you should baby it. What I do, when not stress testing to determine durability, is machine wash the shirts cold, and then hang them on the line to dry. The latter is not ideal (laying the flat is ideal), but it's better than a dryer, which will cause your merino T-shirts to pill, wear much faster, and shrink. I've never had a problem storing merino in my closet between wears, but for long-term storage, I recommend you take precautions against moths, which are notorious for eating holes in wool. I have lost merino garments to moths. If you don't want to smell like mothballs, there are better solutions. I make sure to wash and thoroughly dry whatever I am storing, then I seal it in a compression bag, like this. Another option is to put your merino garment in a cotton bag or otherwise wrap it in cotton and then put it in a plastic bin. It's very important to make sure that the garment is completely dry before using any of these storage methods, otherwise your wool will smell musty and moldy. Other options include storing your garment in a cedar chest, which is a good natural deterrent for moths, or use moth traps or lavender sachets, which will repel the moths. How Long Can You Wear a Merino T-Shirt Without Washing It? Really? Reddit is full of people who say they wear their merino for weeks without washing and a roughly equal number of people who say those people smell like it and are in denial. Both camps are probably right to some degree. How long your merino T-shirt can go without a wash and not smell depends on many things, including ambient temps, exertion level, and individual body chemistry. I have no doubt that some people really can wear a merino T-shirt for a week in 70 degree temps without it smelling, assuming they are bathing regularly and not working out in it. In my experience exertion level makes all the difference, as does the merino percentage. 100 percent merino T-shirts like the Unbound Merino above resist odor much better than blends. I have worn Unbound Merino T-shirts for five days in cool weather without the hint of smell, something my wife and kids can vouch for—hence the reason it's my favorite travel tee. But if I wear it to jiujitsu and roll in it for an hour, it turns to a soaked sweaty mess that goes straight in the wash the minute I get home. Power up with unlimited access to WIRED. Get best-in-class reporting and exclusive subscriber content that's too important to ignore. Subscribe Today. Scott Gilbertson is Operations Manager for the WIRED Reviews Team. He was previously a writer and editor for WIRED’s Webmonkey.com, covering the independent web and early internet culture. You can reach him at luxagraf.net. ... Read MoreSenior Writer and ReviewerXTopicsShoppingapparelbuying guidesoutdoorsSportsThe Best Ski Clothes for Staying Warm and Having FunFrom weatherproof jackets and pants to puffers, gloves, and socks, WIRED’s winter sports experts have you covered.Chris HaslamGive Your Back a Break With Our Favorite Office ChairsSitting at a desk for hours? 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