Fit
Size Guide
Last updated: September 10, 2026
GYMBUNZ pieces are cut close and made to stretch. If you're between sizes or you want a looser feel, size up.
Measurements (inches)
| Size | US | Bust | Waist | Hip |
|---|---|---|---|---|
| S | 2 – 4 | 31 – 33 | 24 – 26 | 34 – 36 |
| M | 6 – 8 | 33 – 35 | 26 – 28 | 36 – 38 |
| L | 10 – 12 | 35 – 37 | 28 – 30 | 38 – 40 |
| XL | 14 – 16 | 37 – 40 | 30 – 33 | 40 – 43 |
How to measure
- Bust: around the fullest part of your chest, tape level and snug.
- Waist: around the narrowest part of your torso, just above the belly button.
- Hip: around the fullest part of your hips and seat, feet together.
Fit notes
- Rompers and jumpsuits: sculpting compression through the torso. If your height is over 5'8", size up for extra length.
- Bras and tops: true to size for a locked-in feel; size up if you want light support.
- Shorts and flares: high-rise and squat-proof. Go by your hip measurement.
Still unsure?
Email hello@gymbunz.com with your measurements and the piece you want and we'll tell you which size to order. Every piece is made to order, so choosing the right size the first time saves you a return.
Questions? Email hello@gymbunz.com