Hermès Sandal Sizing: Everything You Need to Know
Finding the correct size in a pair of Hermès sandals is more consequential than in most other footwear categories. Because Hermès uses full-thickness, structured calfskin leather, a sandal that is half a size below your correct fit will not stretch in the way that a thinner or cheaper hide would. Conversely, a sandal that is too large will slip, fold and crease unattractively, and age inconsistently. The leather softening process that allows Hermès leather to conform to the foot depends on the right initial size — the leather conforms to your specific foot within its correct size.
This article covers every sizing consideration for Hermès sandals: Hermès size equivalents in other systems, the fit details specific to each main style, accurate foot measuring technique, and what to do when you are between sizes. It also covers particular circumstances — wide footwidth, narrow heel fit, leather-specific differences.
How Hermès Sizes Work
Hermès sandals use Paris point sizing, which is available in full and half increments. This is a foot-length-based system using Paris point units — a Paris point measures roughly 6.67 millimeters. The size options in the Hermès sandal range usually runs from EU 34 up to EU 42. Here are the conversions from EU to other sizing systems: EU 37 = US Women’s 7 = UK 4; EU 38 = US Women’s 7.5–8 = UK 5; EU 39 = US Women’s 8.5–9 = UK 6; EU 40 = US Women’s 9–9.5 = UK 6.5. These equivalents are not exact and work best for standard foot widths.
One key distinction of Hermès sizing is that it varies slightly between styles. The Oran and Izmir are made on different lasts, and the equivalent EU number may feel different in each. Many buyers report that their size in the Izmir versus the Oran differs by one half-size, even in the same EU number. This is not an error — it is a result of different construction forms.