A very breathable barefoot shoe for kids' natural stance and movement. The sole is 4 mm thick and it has a medium width. Also perfect as in indoor shoe for daycare and school. Astelu comes in multiple colors! Check other available colors here.Reima barefoot shoes Astelu have been honored with the prestigious APMA (American Podiatric Medical Association) Seal of Acceptance, which is a mark of excellence, recognizing products that promote good foot health. The APMA Seal is granted to products that have been rigorously reviewed and shown to provide exceptional support, comfort, and overall foot health benefits.