Allbirds now makes comfortable and breathable underwear from wool — here's what we thought after testing them out
Mara Leighton
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- Allbirds has launched its first-ever underwear collection, called Trino Undies, and it's made from soft Merino wool and eucalyptus tree fiber.
- Trino Undies are currently available in a variety of colors and five styles: Boxer Brief ($24), Thong ($16), Brief ($18), Shortie ($20), and a Bralette ($30). Sizes range from XS to 3XL.
- We had two reporters test out the pieces ahead of the launch and compare them to other popular options.
- You can find our full reviews below, but the quick version is this: the underwear is soft, breathable, and barely there, but we found that the bralette doesn't offer support for larger busts.
Allbirds is growing its collection of basics with a new line of underwear — called Trino Undies ($16-$30) — which is named for the same Trino material used in its popular socks.
Trino Undies are currently available in a variety of colors (from neutral Wheat to peachy Malibu) and in five different styles: Boxer Brief ($24), Thong ($16), Brief ($18), Shortie ($20), and a Bralette ($30). Sizes range from XS to 3XL in most styles. You can shop them all here.
The company prioritizes eco-friendly alternatives in all of its wardrobe staples, and now that includes underwear too. Trino fabric is made with soft Merino wool and the brand's eucalyptus material rather than traditional cotton or virgin nylon (which is made from petroleum). Merino wool is temperature-regulating and moisture-wicking enough that you'll see it show up in high-end running and hiking gear. It also allows Allbirds to use 60% less energy in comparison to typical synthetics when producing its products. Its tree fiber Tencel, which is silky-smooth and breathable, avoids harsh pesticides, minimizes fertilizer, and relies on rainfall — which means using 95% less water than traditional cotton.
We had two reporters test the Allbirds Trino underwear ahead of the launch. You can find our full reviews below, but the gist is this: the underwear is comfortable, breathable, and worth the price. It didn't dethrone our other favorites, but it is a noteworthy contender. However, we wouldn't suggest the bralette for larger bust sizes. If you need something that lends support as well as comfort, we recommend Lively bralettes.
And if you have a sensitivity to wool, the Trino Undies may not be for you. You can find all of our favorite men's underwear here and women's underwear here.
We tried the Allbirds Trino Underwear, and here's what you can expect:Boxer Briefs
Allbirds' new underwear collection came as a total surprise to me, but I'm glad the brand decided to make it. Using a blend of eucalyptus tree material and merino wool, the Allbirds Trino boxer briefs deliver lightweight comfort and a soft next-to-skin feel that I haven't experienced from some options that are even more expensive. At $24, the Allbirds Trino boxer briefs are considerably affordable. For reference, they're cheaper than every pair I've included in the best men's underwear guide, with the exception of our most affordable budget pick.
There was a huge tag on the inside of the underwear that I imagine would be uncomfortable if left in, but it was easily removable. Although I haven't washed them yet, I would recommend not drying them on high heat since they're made partly from wool.— Amir Ismael, reporter
Shortie
The Trino Undies are super soft, breathable, and feel light and airy on. The band is strong enough to keep the waistband from rolling but doesn't feel restrictive. I got the shortie with the express interest of having something cozy to wear to bed — and I was right. This is the pair I'd turn to for a long plane ride, road trip, or lounge day as well as for regular use. They didn't dethrone my other favorite underwear from Tommy John and Meundies, but they are worthy contenders.
For $20, I wouldn't race to replace every other pair I own with these, but I would happily treat myself to a couple of pairs to make daily life a little more enjoyable. — Mara Leighton, senior reporter
Bralette
While the material is the same wonderful, breathable silky-smooth material as in its underwear, the bralette offered no support for me. I went with the medium size as a 32DD (my standard bralette size, as a compromise between my band and cup sizes), and the band continually rides up. The problem seems to be more due to a lack of elastic than a too-large band, but it's possible that a size small would have stayed put better.
For $30, it's a cozy option for lounging, but not much else in my experience. This may not be the case for bust sizes that don't require much support. But, if you want some support as well as comfort, I'd recommend checking out Lively bralettes instead (most of them are $35 apiece). —Mara Leighton, senior reporter
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