CoreSculpt™ Compression Tank
CoreSculpt™ Compression Tank
- Structured knit — holds its form all day without riding up or bunching
- Posture paneling — encourages an upright, squared stance
- Quick-dry knit — breathable, stays cool through the day
- Invisible under shirts — flat seams, no visible lines
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Posture Support
Structured paneling across the back encourages an upright stance without restricting movement.
All-Day Comfort
Lightweight, breathable knit that stays put — no riding up, no readjusting.
Invisible Layering
Flat seams and a smooth surface disappear under dress shirts, polos, and tees.
01
Pick your size
S through 4XL. True to size for most; size up if you're between.
02
Wear it as a base layer
Under a shirt for work, on its own at the gym.
03
Wash and repeat
Machine wash cold, hang dry. Holds its structure wash after wash.
Fit Map
Built for how you move
- Flatlock shoulder seam — lays flat under a dress shirt
- Compression panel — firm, even support across the chest
- Side-panel gusset — full arm mobility, no pull
- Moisture-wicking knit — draws sweat away, dries quickly
- Bound hem — stays tucked without rolling
Built to Hold Its Shape
Most compression tops lose their structure after a few washes. CoreSculpt uses a seamless knit with zoned tension — firmer through the torso, lighter at the shoulders and arms. The panels are knitted in, not printed on, so the support stays where it should.
Disappears Under a Shirt
Flat-lock seams and a smooth outer face mean no ridges or bunching under a dress shirt. Wear it to the office, under a polo on the weekend, or on its own at the gym.
Cool When You're Not
The knit moves moisture away from the skin and dries fast. Long commute, long meeting, long day — it stays comfortable.
ZIVIT vs Others
| ZIVIT | Others | |
|---|---|---|
| Posture support paneling | ✓ | ✕ |
| Invisible under dress shirts | ✓ | ✕ |
| Holds structure after washing | ✓ | ✕ |
| All-day breathable knit | ✓ | ✕ |
| Sizes S–4XL | ✓ | ✕ |
| 30-day money back | ✓ | ✕ |
Size Guide
True to size. Between sizes? Size up for a relaxed fit.
| Size | Chest (in) | Weight (lbs) |
|---|---|---|
| S | 34–36 | 110–135 |
| M | 36–39 | 135–160 |
| L | 39–42 | 160–185 |
| XL | 42–45 | 185–210 |
| 2XL | 45–48 | 210–235 |
| 3XL | 48–51 | 235–265 |
| 4XL | 51–54 | 265–295 |
Measure around the fullest part of your chest, keeping the tape level.
Questions
What is the CoreSculpt™ Tank made of?
82% nylon and 18% spandex in a seamless knit. The support panels are knitted directly into the fabric rather than printed or bonded on.
How does the posture support work?
Zoned tension across the upper back applies gentle, consistent pressure that makes an upright stance the path of least resistance. It's a reminder, not a brace — you can move freely.
Will it show under my shirt?
No. Flat-lock seams and a smooth outer surface sit flush against the skin. It layers cleanly under dress shirts, polos, and tees.
What size should I order?
Use the chest measurement in the size chart above. It runs true to size. Between sizes: size up for a relaxed fit, stay true for firmer compression.
Is it comfortable for all-day wear?
Yes. The knit is lightweight and breathable, and the hem is designed to stay in place without riding up.
Can I wear it to the gym?
Yes — on its own or as a base layer. The quick-dry knit handles sweat well.
How do I wash it?
Machine wash cold on a gentle cycle, then hang dry. Skip the dryer, bleach, and iron — heat breaks down the elastane.
What if I order the wrong size?
Send it back within 30 days for a free exchange or a full refund. Return shipping is on us within the US.
How long does shipping take?
Orders are processed within 3 business days and typically arrive in 7–12 business days. Every order ships with tracking.
What's your return policy?
30 days from delivery, no questions asked. The item should be unworn and in its original packaging. Email support@zivit.store to start a return.
30 Days. No Questions.
Wear it, wash it, layer it. If it isn't right, send it back within 30 days for a full refund. We cover return shipping in the US.