Size Guide
Ferro FORME is designed to fit true to size. Our fabrics carry four-way stretch, so most women wear their usual size. If you're between sizes or prefer a looser feel, size up.
Size Chart
All measurements are body measurements in inches — not garment measurements.
| Size | US | UK | EU | AU | Bust | Underbust | Waist | Hip |
|---|---|---|---|---|---|---|---|---|
| S | 2–4 | 6–8 | 34–36 | 6–8 | 32–34 | 26–28 | 25–27 | 35–37 |
| M | 6–8 | 10–12 | 38–40 | 10–12 | 34–36 | 28–30 | 27–29 | 37–39 |
| L | 10–12 | 14–16 | 42–44 | 14–16 | 36–38.5 | 30–32 | 29–31.5 | 39–41.5 |
| XL | 14–16 | 18–20 | 46–48 | 18–20 | 38.5–41 | 32–34 | 31.5–34 | 41.5–44 |
Measurements in centimetres: to convert, multiply inches by 2.54.
How to Measure
Use a soft tape measure over bare skin or thin clothing. Keep the tape level and snug, not tight.
- Bust — around the fullest part of your chest.
- Underbust — directly beneath your bust, where a bra band sits. This is the measurement that matters most for our sports bras.
- Waist — the narrowest part of your torso, usually just above the belly button.
- Hip — around the fullest part of your hips and seat.
Fit Notes by Category
- Sports bras — medium to high support depending on the style. Go by your underbust measurement. Removable pads on most styles.
- Leggings and shorts — high-waisted with a compression fit. Squat-proof opacity. Go by hip measurement.
- Seamless compression styles (Balance, Flex, Naked) — these run close to the body by design. If you want more coverage, size up.
- One-piece sets — fit varies with torso length. If you're long through the torso, size up.
- The Naked line — made in a deliberately thin fabric. Light-colored undergarments recommended.
Still Not Sure?
Email us at Contact@ferroforme.com with your measurements and the style you're looking at, and we'll tell you which size to order. We respond within 1–2 business days.
Returns are accepted on unworn, unwashed items with tags attached within 30 days of delivery. International customers: return shipping is your responsibility, and any duties or import taxes already paid are not refundable. Getting the size right the first time matters — please email us if you're unsure.