The PVC/EVA bathroom slippers provide a foot-length map from size 39 at 24.5 cm through size 47 at 28.5 cm. That is more useful for ordering than guessing from an international size label. The page’s slip-prevention language is an untested marketing claim; it supplies no standardized wet-surface result.

Choose by standing foot length

Stand with weight on both feet and measure heel to longest toe on each; use the longer foot. The chart advances 0.5 cm per size: size 42 corresponds to 26.0 cm and 43 to 26.5 cm. Compare your foot width and instep as well. The listing suggests more room for wide feet but provides no interior width, so ask for a top-down ruler photo of the selected White or Black size rather than assuming one size up is sufficient.

The upper is listed as PVC and outsole/insole as EVA. Heel height is described only as a 1–3 cm low range. Treat dry and wet flooring as different use conditions: until a credible traction test is supplied, do not rely on the product name as a safety guarantee. The source also says the shoes are sold without a box, which may matter if you are buying as a gift.