The Calla orthopedic flat sandals are built for women who refuse to choose between comfort and style. Every detail is designed to keep your feet happy from morning to night.
These sandals are your go-to for effortless everyday dressing. Pair them with a flowy midi dress for a weekend brunch vibe, or wear them with tailored trousers for a polished work-from-home-to-errands look. The understated design transitions seamlessly from casual outings to easy outdoor events — comfort that never sacrifices your style.
| Foot Length (cm) | US Women | EU Size |
|---|---|---|
| 22 | 5 | 34 |
| 22.5 | 5.5 | 35 |
| 23 | 6 | 36 |
| 23.5 | 6.5 | 37 |
| 24 | 7 | 38 |
| 24.5 | 7.5 | 38 |
| 25 | 8 | 39 |
| 25.5 | 8.5 | 40 |
| 26 | 9 | 40 |
| 26.5 | 9.5 | 41 |
| 27 | 10 | 42 |
| 27.5 | 10.5 | 42 |
| 28 | 11 | 43 |
| 28.5 | 11.5 | 44 |
| 29 | 12 | 45 |
Between sizes? Go up for the most comfortable fit.
For the best fit, measure your foot length in inches from heel to longest toe and match to the chart below. If you're between sizes, we recommend sizing up.
| US | EU | UK | Foot length (in) | Foot length (cm) |
|---|---|---|---|---|
| 5 | 35 | 2.5 | 8.66 | 22.0 |
| 5.5 | 35.5 | 3 | 8.86 | 22.5 |
| 6 | 36 | 3.5 | 9.06 | 23.0 |
| 6.5 | 37 | 4 | 9.25 | 23.5 |
| 7 | 37.5 | 4.5 | 9.45 | 24.0 |
| 7.5 | 38 | 5 | 9.65 | 24.5 |
| 8 | 38.5 | 5.5 | 9.84 | 25.0 |
| 8.5 | 39 | 6 | 10.04 | 25.5 |
| 9 | 40 | 6.5 | 10.24 | 26.0 |
| 9.5 | 40.5 | 7 | 10.43 | 26.5 |
| 10 | 41 | 7.5 | 10.63 | 27.0 |
| 10.5 | 41.5 | 8 | 10.83 | 27.5 |
| 11 | 42 | 8.5 | 11.02 | 28.0 |
| 12 | 43 | 9.5 | 11.42 | 29.0 |
Sizes are approximate. Some styles may run wider or narrower — see the product description for fit notes.
Free U.S. Shipping + Tracking!
All orders in the U.S. include free shipping with a Track & Trace code, so you can monitor your order every step of the way. You'll receive your tracking code via email within 24-72 hours after placing your order.