37.5 but I would say they run a half size small I am a 37 1/2 in the So Kate.

Laser-cut leather forms the lace-like upper of the Christian Louboutin Impera pump.

Christian Louboutin laser-cut calfskin pump.

4" covered stiletto heel.

Transparent PVC backing.

Scalloped collar.

Pointed toe; single sole.

Lace-up vamp ties at ankle.

Christian Louboutin signature red leather sole.

"Impera" is made in Italy.