Shape Up Fast Without Extra Effort
Boost confidence every day and see visible results quickly. The Threo vest uses special fabric to increase calorie burn during activity. Enjoy a sleek look under any clothing while staying comfortable. No complicated routines needed to get a firmer silhouette.
Maximum Sweat
Increase perspiration every session for faster progress. More moisture means quicker loss of excess water weight.
Instant Slimming
Flatten your stomach immediately for a sharper appearance. Hidden seams keep everything smooth and discreet.
Comfort Fit
Flexible material allows free movement during workouts or rest. Breathable lining prevents overheating or skin irritation.
Size Guide
- TO MEASURE YOURSELF:
- 1. Stand straight with your arms hanging naturally by your sides.
- 2. Start the measuring tape at the shoulder and extend it down to the desired hemline.
- 3. Wrap the measuring tape around the thinnest part of your waist and the fullest part of your bust.
| SIZE | LENGTH | BUST | WAIST | |||
|---|---|---|---|---|---|---|
| cm | inch | cm | inch | cm | inch | |
| S | 57 | 22.44 | 90-94 | 35.43-37.01 | 80-85 | 31.49-33.46 |
| M | 60 | 23.62 | 94-98 | 37.01-38.58 | 85-90 | 33.46-35.43 |
| L | 60 | 23.62 | 98-103 | 38.58-40.55 | 90-95 | 35.43-37.4 |
| XL | 61 | 24.02 | 103-108 | 40.55-42.52 | 95-100 | 37.4-39.37 |
| 2XL | 64 | 25.2 | 108-113 | 42.52-44.49 | 100-105 | 39.37-41.34 |
| 3XL | 65 | 25.59 | 113-118 | 44.49-46.46 | 105-110 | 41.34-43.31 |
















Eric L.
This vest helped me feel better in my own skin. It smooths my stomach, doesn’t pinch, and I drip sweat even on light bike rides.
Marcus T.
I wear the tank under my work clothes and to the gym. It trims my waist instantly and makes every short workout feel twice as intense.
John D.
Bought this sauna vest after my jeans got tight. It really ramps up sweat on walks, and my belly looks flatter under shirts right away.
David S.
I’m a dad of two with no time. I throw this on for home workouts and can see sweat pouring. My midsection looks tighter already.
Brian K.
The tank fits close without feeling stiff. I sweat like crazy during simple chores, and my shirts lay flatter across my gut now.
George Y.
Helps me sweat more at the gym, very durable and light.
Derek W.
I wear the vest under my office clothes. It trims my midsection, and by lunchtime I’m sweating more than I used to during full workouts.
Tim F.
I bought this slim top to jump-start my fitness. It helps me sweat during simple walks, keeps my core snug, and still lets the skin breathe.
Kevin P.
I use the tank during home workouts and while doing house cleaning. It adds a steady burn, helps my gut look flatter, and doesn’t ride up.
Robert C.
Got this for my evening walks. It hugs my torso without squeezing, ramps up sweat quickly, and my belly outline under tees is much cleaner.