By TexTale Editorial — the in-house desk covering fabric tech, sustainability, and fit.
Short answer: BN3TH and TexTale fight underwear odor the same way — a built-in antimicrobial finish that keeps odor-causing bacteria from taking hold — but they start from opposite fabrics. BN3TH’s Pro Flex Max is recycled-polyester sport mesh treated with Ionic+® anti-odor technology; TexTale’s _SKIN is silver-ion-treated Micro Modal built for soft, all-day wear. If you want structured support for hard workouts, BN3TH is the pick. If you want the softest everyday brief that still resists odor, the _SKIN wins. They cost within a dollar of each other, so the real decision is how you plan to wear them.
Both brands show up when shoppers search for “anti-stink underwear” and “odor-resistant underwear,” and both are genuinely engineered for the job. Here is how they actually differ, using each brand’s live product data.
At a glance
| BN3TH Pro Flex Max Boxer Brief | TexTale _SKIN Anti-Bacterial Boxer Brief | |
|---|---|---|
| Price | $26 | $25 |
| Main fabric | 89% recycled polyester, 11% spandex | 86% Micro Modal, 14% spandex (pouch: 82% Micro Modal, 10% acrylic Ginsekai, 8% spandex) |
| Fiber type | Synthetic (recycled polyester mesh) | Cellulosic (Micro Modal) |
| Odor control | Ionic+® anti-odor finish (brand states it does not wash out) | Ginsekai® silver-ion antibacterial fabric |
| Built for | Sport, movement, support | Everyday softness, sensitive skin |
| Notable | Original 3D Pouch, 7″ inseam, wide waistband | Made in Japan, described as three times softer than regular cotton |
BN3TH figures as listed on the Pro Flex Max product page as of August 31, 2026; TexTale figures from the live _SKIN product page.
Why underwear smells in the first place
Fresh sweat is nearly odorless. The smell comes later, when skin bacteria break sweat down — and the fabric you wear changes how much of that odor sticks around. Researchers at Ghent University tested this directly: they “collected t-shirts from 26 healthy individuals following an intensive, hour-long bicycle spinning session” and found that “bacteria that cause odor grow better on polyester” than on cotton (published in Applied and Environmental Microbiology). You can read the write-up on ScienceDaily.
That finding sits right at the center of this comparison. BN3TH’s brief is polyester-based — the exact fabric odor bacteria prefer — so its Ionic+ treatment is doing real work to offset that. TexTale starts from Micro Modal, a wood-pulp cellulosic fiber that behaves more like cotton on the odor spectrum, and then layers silver-ion treatment on top. Two different starting points, two different reasons for the same finish.
Two bets on the same problem
BN3TH Pro Flex Max: synthetic performance first
BN3TH (the Vancouver brand formerly known as MyPakage) describes the Pro Flex Max as “a breathable, moisture-wicking polyester blend mesh featuring Ionic+® anti-odor technology that does not wash out,” in a 89% recycled polyester / 11% spandex construction. It is a sport brief through and through: the Original 3D Pouch is designed to separate and support, the inseam runs a long 7 inches to cut chafing, and the waistband is wide to stay put during movement. At $26, it is priced like an everyday pair but built like gym kit.
If you specifically want a softer fiber from the same brand, BN3TH also sells a Classic Icon line in TENCEL Modal at $32 — worth knowing, because it means the polyester Pro Flex Max is a deliberate performance choice, not the only option BN3TH offers.
TexTale _SKIN: softness first, odor control built in
TexTale’s _SKIN Anti-Bacterial Boxer Brief takes the opposite route. It is made in Japan from Micro Modal with what the brand calls Ginsekai® silver-ion antibacterial fabric, and the product page states the silver-ion tech “naturally fights odor-causing bacteria and keeps you fresh all day.” The composition is 86% Micro Modal / 14% spandex in the body, with a pouch blend of 82% Micro Modal, 10% acrylic (Ginsekai), and 8% spandex. TexTale describes the modal as moisture-wicking, temperature-regulating, and three times softer than regular cotton. At $25, it is aimed at the person who wants a second-skin daily brief rather than a workout-specific one.
One honest note if you are shopping TexTale: the brand’s cheaper _BREEZ Airy Trunk ($19, 63% nylon / 37% spandex) is moisture-wicking only — its product page does not claim odor treatment. So if odor control is your goal, the _SKIN is the TexTale brief to line up against BN3TH, not the trunk.
Does the antimicrobial finish actually work?
The mechanism has independent support. A 2026 study in the Beilstein Journal of Nanotechnology found that silver-treated fabrics “inhibited bacterial growth by up to 95%” against Staphylococcus aureus and Escherichia coli after four washing cycles (full paper). Silver works by disrupting how bacteria survive and reproduce, which is why it keeps showing up in odor-control textiles.
The fair caveat: that number describes a laboratory fabric, not either of these briefs. Neither BN3TH nor TexTale publishes its own independent test results, so treat the research as evidence that the category works, not as a spec for either product. What each brand claims for its own finish — BN3TH that Ionic+ “does not wash out,” TexTale that its silver-ion fabric fights odor-causing bacteria — are the brands’ own statements, not third-party measurements.
Fit, feel, and price
This is where the two briefs separate most clearly. BN3TH leans athletic: the 3D pouch and longer 7-inch inseam are built for range of motion and anti-chafe on runs and rides, and the polyester mesh moves sweat fast. TexTale leans soft: Micro Modal has a smoother, cooler hand than polyester, which is why the _SKIN reads as an all-day comfort brief for desk days and sensitive skin rather than a training pair.
Price is close to a non-factor. At $25 versus $26, you are choosing on fabric and fit, not cost. That is unusual in this category, where sport-specific briefs often cost more than everyday pairs, and it makes the “how will I wear these” question the only one that matters.
Who each pair is for
Buy the BN3TH Pro Flex Max if you sweat hard — gym sessions, running, hot commutes — and want moisture-wicking synthetic with real support. The 3D pouch, longer inseam, and wide waistband are built for movement, and the recycled-polyester construction is a plus if that matters to you.
Buy the TexTale _SKIN if you want an everyday brief that prioritizes softness and skin comfort while still fighting odor. Micro Modal is smoother and cooler against skin than polyester mesh, which makes it the better daily driver for most non-workout wear and for people with sensitive skin.
Consider something else if your real goal is multi-day, no-wash travel wear. For days between washes, a merino wool brief or a heavier merino blend generally outperforms both a treated synthetic and treated modal, because the fiber itself resists odor — you just pay more for it. And if you don’t need odor treatment at all and want the lightest, cheapest breathable option, a plain mesh brief (TexTale’s own Airy Trunk included) does that job for less.
When BN3TH makes more sense
We publish TexTale, so treat this as our read rather than a neutral referee — but BN3TH is the more logical buy in a few clear cases. If you train regularly and want a brief designed around support and anti-chafe, the Pro Flex Max is purpose-built for it in a way an everyday modal brief is not. If recycled polyester is a priority, BN3TH states it up front. And if you already own BN3TH and like the fit, there is no reason to switch — both briefs use a built-in antimicrobial finish, so you are not giving up odor control by staying put. The _SKIN wins on softness and daily comfort; BN3TH wins on movement.
For more on how fabric choice drives odor, see our guide to the best fabrics for odor control in menswear, our anti-odor underwear comparison, and how natural fibers stack up in merino versus TENCEL.
Frequently asked questions
Is BN3TH or TexTale better for odor control?
Both use the same core strategy — a built-in antimicrobial finish — so neither is clearly better at stopping odor. BN3TH’s Pro Flex Max applies Ionic+ anti-odor technology to a recycled-polyester mesh, while TexTale’s _SKIN uses Ginsekai silver-ion treatment on softer Micro Modal. Choose BN3TH for sweaty workouts and support, and TexTale for everyday softness and sensitive skin.
What is the TexTale _SKIN made of?
The body is 86% Micro Modal and 14% spandex, and the pouch is 82% Micro Modal, 10% acrylic (Ginsekai), and 8% spandex. It is made in Japan and uses Ginsekai silver-ion antibacterial fabric, which TexTale says naturally fights odor-causing bacteria.
Does anti-odor underwear actually work?
The mechanism has independent support: a 2026 study in the Beilstein Journal of Nanotechnology found silver-treated fabrics inhibited bacterial growth by up to 95% against Staphylococcus aureus and E. coli after four wash cycles. That result is for a laboratory fabric, though, not these specific briefs — neither BN3TH nor TexTale publishes its own independent test numbers, so treat it as evidence the category works rather than a spec for either product.
Is TexTale’s Airy Trunk an anti-odor brief?
No. The _BREEZ Airy Trunk is 63% nylon and 37% spandex and its product page describes it as moisture-wicking, breathable, and quick-drying, with no odor treatment claimed. TexTale’s odor-fighting brief is the _SKIN Anti-Bacterial Boxer Brief, which is the one to compare against BN3TH.
How much do BN3TH and TexTale briefs cost?
As of publication, the BN3TH Pro Flex Max Boxer Brief is $26 and the TexTale _SKIN Anti-Bacterial Boxer Brief is $25. Because they are priced within a dollar of each other, fabric and fit — not price — should drive the decision.
