Last updated: 23 May 2026
Use this guide to find your best fit. Our dresses use the MOMA HILO size system (Sizes 1–4), which maps to UK sizes 8–22. If you are between sizes or unsure, contact us at info@fibyus.co.uk and we will be happy to help.
How to Measure
- Bust: measure around the fullest part of your bust, keeping the tape level.
- Waist: measure around the narrowest part of your natural waistline.
- Hips: measure around the fullest part of your hips.
Measure over light clothing and keep the tape comfortably snug, not tight.
Size Chart (body measurements)
| MOMA HILO Size | UK Size | US Size | Bust (cm) | Waist (cm) | Hip (cm) |
|---|---|---|---|---|---|
| 1 | 8 | 4 | 85 | 68 | 94 |
| 1 | 10 | 6 | 90 | 73 | 99 |
| 2 | 12 | 8 | 95 | 78 | 104 |
| 2 | 14 | 10 | 100 | 83 | 109 |
| 3 | 16 | 12 | 105 | 88 | 114 |
| 3 | 18 | 14 | 110 | 93 | 119 |
| 4 | 20 | 16 | 115 | 98 | 124 |
| 4 | 22 | 18 | 120 | 103 | 129 |
These are general body measurements. Individual styles may vary in cut and fit — some of our designs are intentionally relaxed or oversized, as noted on the relevant product page.
Contact
For sizing help, email info@fibyus.co.uk.
