Fibflx Size Charts
Sized right. Footprint light.
Thoughtful sizing is part of our sustainability commitment. Accurate fit means fewer returns, lower carbon footprint, and clothes you’ll truly live in.
We follow standard US sizing (approximately US 0–14), but as every fabric and silhouette behaves differently, your best fit may vary by style.
Each piece is measured by hand, and our fit notes—such as “true to size” or “runs small”—are based on real try-ons to help you find your perfect fit effortlessly.
For accurate sizing, check individual product pages. Leave your usual size at checkout—we’ll double-check the fit before shipping. If you have any questions, please feel free to email us at hello@fibflx.com — we are happy to guide you!
Standard Size Chart (XXS–XXL)
For women 5'4"–5'8" (162–173 cm)
| Size | US | Weight (lbs) | Bust | Waist | Hips | |||
|---|---|---|---|---|---|---|---|---|
| in | cm | in | cm | in | cm | |||
| XXS | 00 | 88 | 30.7–32.3 | 78–82 | 22.8–24.4 | 58–62 | 30.7–31.5 | 78–80 |
| XS | 0 | 99 | 32.3–33.1 | 82–84.1 | 24.4–25.2 | 62–64 | 31.5–33.1 | 80–84.1 |
| XS | 2 | 110 | 33.1–33.9 | 84.1–86.1 | 25.2–26.8 | 64–68.1 | 33.1–34.6 | 84.1–87.9 |
| S | 4 | 121 | 34.6–36.2 | 87.9–91.9 | 26.8–28.3 | 68.1–71.9 | 34.6–36.2 | 87.9–92 |
| S | 6 | 132 | 36.2–37 | 91.9–94 | 28.3–29.9 | 71.9–75.9 | 36.2–37.8 | 92–96 |
| M | 8 | 143 | 37–37.8 | 94–96 | 29.9–30.7 | 75.9–78 | 37.8–39.4 | 96–100 |
| M | 10 | 154 | 37.8–38.6 | 96–98 | 31.5–32.3 | 80–82 | 39.4–40.9 | 100–104 |
| L | 12 | 165 | 38.6–39.4 | 98–100.1 | 32.3–33.1 | 82–84 | 40.9–42.5 | 104–108 |
| L | 14 | 176 | 39.4–40.9 | 100.1–104 | 33.1–33.9 | 84–86 | 42.5–44.1 | 107–112 |
| XL | 16 | 187 | 40.9–41.7 | 104.9–105.5 | 33.9–34.6 | 86–88 | 45.7–47.2 | 116–120 |
| XL | 18 | 198 | 42.5–43.3 | 107.9–110 | 33.9–34.6 | 86–88 | 45.7–47.2 | 116–120 |
| XXL | 20 | 209 | 43.3–44.1 | 110–112 | 34.6–35.4 | 88–90 | 47.2–48.8 | 120–124 |