UNDR Men's Core Support Band
Hidden under a suit.
Under a dress shirt.
Under casual layers.
Nobody sees it. Your choice.
Common questions
What does it feel like to wear?
Is it visible under a regular shirt?
How tight should it feel?
How do I wash it?
What if it doesn't fit?
Targeted. Precise. Invisible.
The UNDR Men's Core Support Band focuses compression exactly where men carry the most tension—the lumbar region and abdominal core. Worn discreetly under any shirt, it gently engages the core throughout the day, actively supporting posture without restricting your range of motion.
The seamless, pull-on nylon design means it is in place within seconds. Designed for the desk, the boardroom, or the long commute. Wherever your day takes you, the Core Band follows.
Available in One Size (High-Stretch).
Your choice. Hidden impact.
- Engineered for a Universal Fit: A high-stretch nylon blend that adapts to any torso shape.
Free shipping across Europe. 7–14 business days. Discreet plain packaging.
Returns: 30 days. Unworn with tags. Email hello@undrapparel.com.
Measure around the widest part of your chest, just under the armpits. Keep the tape horizontal.
| Size | Chest (cm) | Waist (cm) | Build |
|---|---|---|---|
| S | 86–91 | 71–76 | Slim |
| M | 92–97 | 77–82 | Average |
| L | 98–103 | 83–88 | Athletic |
| XL | 104–109 | 89–94 | Broader |
| 2XL | 110–117 | 95–102 | Large |
| 3XL | 118–125 | 103–110 | Extra large |
First wear feels tighter. Give it 30 minutes.
Supports posture naturally. You stand differently without trying.
Supports lower back during extended wear. You finish the day the same way you started.
Keeps the core lightly engaged. A quiet reminder to hold. No effort required.
Built for all-day wear. Breathes and moves. No rolling. No adjustment.
Shop the collection
Real men. Real layers.
“Flew 14 hours to New York. Zero swelling in my feet. Best travel purchase this year.”
“Keeps the cold out and my back straight. Good stuff and hugs my little big friend tight.”
“Velikost M sem moral zamenjati za L, ker mi je bila okoli prsi preveč tesna. Vračilo je bilo sicer preprosto. Velikost L mi odlično pristoji in pod delovnimi srajcami opravlja točno tisto, kar potrebujem. 👍”
“🔥💪”
“The vest itself is high quality and comfortable after the first 20 minutes. But shipping took almost two week. A bit pricey for the wait.”
“great fit. invisible under polos.”
“Use these for recovery after tennis. They feel great. Box was totally plain which I appreciate.”
“Very firm hold. Make sure you measure your waist exactly like the guide says.”
“Perfect 👍👍”
“Just bought my third one. Wear them every day to the office now.”
“Takes a minute to get used to the feeling but it works.”
“Posture support is a nice bonus.”
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The Base Layer
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Discreet PackagingHidden Impact
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