With a 5mm Vibram Dunas sole, and for the footbed we choose an EVA rubber for podiatric use of 1 or 2mm. The closure is formed by a 15mm polypropylene nylon strap and a pin buckle, with which you will quickly get the sandals perfectly adapted to your feet.
To find the size you just have to measure the foot as follows: Place it on a sheet and, resting the heel on the wall, mark on it, where the longest toe ends (obviously the sheet will also touch the wall), then measure in centimeters, precisely, up to the mark. Once you have the measurement and with the table that you will find in images you will have no problems locating the size.
They can be cleaned with a damp cloth.
Do not leave in the sun.