Insoles, for sandals and open-toed shoes, one size fits all (35-40.5), and reusable.
Scholl Gelactiv Insoles for Open Shoes are made of a transparent gel with a slim design that is not visible when wearing open shoes. They are designed to absorb impacts (especially on hard surfaces) and help reduce the discomfort caused by standing for long periods of time. They provide good grip on the bottom since they do not slip once placed.