Size guide
Find your fit
The right fit
starts with your feet.
Finding the right fit matters — especially if you have wide feet, bunions or a high instep. Every millie's product page includes the insole length, so you can compare before you order.
How to measure
Measure your foot in three simple steps
For the most accurate fit, measure both feet and use the measurement of your longer foot.
01
Stand on a sheet of paper
Place your foot against a wall with your heel touching the wall. Measure in the evening, when your feet are at their largest.
02
Mark your longest toe
Mark the end of your longest toe and measure from the wall to the mark in cm or inches.
03
Compare your measurement
Add ¼–½ inch (0.5–1 cm) for comfortable room, then compare with the insole length below.
Women's sizing
Find your size
Compare your foot length with the insole length below.
| US / CA | EU | Insole length (cm) | Insole length (in) |
|---|---|---|---|
| 5 | 35 | 22.5 | 8.9 |
| 6 | 36 | 23.0 | 9.1 |
| 6.5 | 37 | 23.5 | 9.3 |
| 7.5 | 38 | 24.0 | 9.4 |
| 8 | 39 | 24.5 | 9.6 |
| 9 | 40 | 25.0 | 9.8 |
| 9.5 | 41 | 25.5 | 10.0 |
| 10 | 42 | 26.0 | 10.2 |
Sizes can vary slightly between styles. Always check the size chart on the individual product page for the exact insole length.
Fit tips
A few things to keep in mind
Between sizes?
Choose the larger size, especially for boots and lined styles.
Wide feet or bunions?
Choose your usual size in our Wide Fit or Bunion-Friendly styles. There is usually no need to size up.
Wearing thick socks?
Allow an extra ¼ inch (0.5 cm) if you're wearing thick socks or your own insoles.
Need a little help?
Still not sure?
Email us at info@millies-boutique.com with your foot length and the style you like. We'll help you choose the right size.
Not the right size? Just email us and we'll help you exchange it for a different size.
Find your perfect fit.
Room for your toes, easy fit, and styles you'll actually want to wear.
Shop the collection