SteelForm Size Guide
Let's find your perfect fit. Not sure? Free exchange within 60 days.
Size calculator
Enter your waist measurement and we'll tell you your size.
Inchescm
How to measure
2Waist
Measure around your natural waist, the narrowest part of your torso, usually just above the belly button.
Size chart
Inchescm
| Size | Your waist | Trainer waist | Front height |
|---|---|---|---|
| XS | 23.6–25.6 | 21.7 | 11.8 |
| S | 26–28 | 23.6 | 11.8 |
| M | 28.3–30.3 | 25.6 | 11.8 |
| L | 30.7–32.7 | 27.6 | 11.8 |
| XL | 33.1–35 | 29.5 | 11.8 |
| 2XL | 35.4–37.4 | 31.5 | 11.8 |
| 3XL | 37.8–40.2 | 33.5 | 11.8 |
Body measurements. Measure yourself, not the garment.
Fit tips
- SteelForm has 9 steel bones and should feel firm. Choose by your natural waist.
- Between two sizes? Choose the larger one for comfort.
- Still unsure? Order your best guess. Exchanges are free within 60 days.





