summer sandals leather sandals in green barefoot sole, very flexible in all directions 4 mm thin natural rubber sole ideally shaped tip, also suitable for the dominant thumb suitable for an average foot they can be tightened for a narrower leg, but we do not recommend it for a very narrow ankle non-shaped insole, zero drop tightening with Velcro u Koel4kids Deen Olive 07M033.101-360 barefoot sandals