Unpleasant surprise at the end of the day: you take off your clothes, and a lingering odor emanates from them. Yet, you took a shower in the morning, put on deodorant, and you didn't feel like you had sweated particularly much.
In reality, the problem isn't just sweat, but what you wear closest to your skin. Certain fabrics promote the buildup of moisture and bacteria, creating ideal conditions for body odor.
In this article, we help you understand why some underwear smells more than others, and how to make the right choices to stay fresh all day long —even when it's hot or your pace is brisk.
Why Your Underwear Retains Odors
Most conventional underwear is made of cotton, polyester, or synthetic blends. However, these materials pose two major problems:
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They absorb moisture without wicking it away properly : the fabric remains damp and hot.
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They promote the proliferation of bacteria : it is these that generate bad odors, not sweat itself.
This stagnant moisture is particularly problematic in the crotch, thighs or lower back, where heat is naturally higher.
This is exactly what we explain in our article on the inconveniences caused by underwear in summer - a problem that is still largely underestimated among men.
The 3 criteria for good anti-odor underwear
🔸 1. It must be ultra-breathable
The more the fabric breathes, the less heat and humidity build up. Synthetic fabrics that are not very breathable accentuate the “steam oven” effect.
🔸 2. It must dry quickly
Good underwear shouldn't trap sweat. Materials like bamboo absorb moisture and then quickly release it back into the air, keeping your skin feeling dry.
🔸 3. It must have antibacterial properties
Natural fibers like bamboo have a special feature: they naturally limit the growth of bacteria. Fewer bacteria = less odor.
We have also detailed this operation in our article on the natural thermoregulation of bamboo fiber .
Why choose bamboo fiber against odors?
Baalr bamboo boxers aren't just soft: they're designed to keep you dry and odor-free , even on a crowded subway ride or after a day at the office.
Bamboo has several natural benefits:
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It is more absorbent than cotton (up to 3 to 4 times),
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It is antibacterial without chemical treatment,
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It regulates body temperature better thanks to its micro-channel structure,
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And it is ultra-soft , limiting friction and irritation.
We have received dozens of testimonials on this subject. Many customers tell us that even after a full day outdoors or a sports workout, they do not notice any unpleasant odor .
If you'd like to know more, we've compiled these reviews into an article dedicated to feedback from customers experiencing heavy sweating .
Which cut should you choose?
The material is essential, but the cut of the underwear also plays a role.
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Long boxers protect against internal friction and sweat buildup between the thighs.
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A fitted shape promotes a good fit without sticking too much to the skin.
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Avoid tight-fitting models, which block ventilation and create hot spots.
At Baalr, our bamboo boxers are designed to promote air circulation while ensuring excellent support. They are tag-free, have no irritating seams, and their cut is suitable for everyday activities as well as sports.
Our summer collection offers several models optimized for summer heat.
Maintenance: the last link in the chain
Even the best fabric will lose its effectiveness without proper care. Here are our tips:
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Wash your boxers after each use at 30 or 40°C,
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Avoid fabric softeners (they clog breathable fibers),
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Prefer air drying,
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And above all: renew your stock regularly.
A pack of 6 to 10 bamboo boxers allows you to easily rotate without losing freshness, even in the middle of a heatwave.
Conclusion
Staying fresh all day long doesn't just depend on hygiene or the products you apply.
It all starts with the right underwear.
With a fabric like bamboo, a breathable fit, and proper care, you eliminate the main causes of body odor.
A small change that has a big impact on your daily life.
