Pediped Jake NavyAbout Flex Jake Navy Sizes 24 31 Nubuck leather upper Breathable leather lining Flexible rubber sole Casual sneaker style with faux laces and Velcro closure Approved by the American Podiatric Medical Association for promoting healthy foot development Technology The Flex Fit System provides additional inserts that can be inserted for a snug fit then removed for room as your child's foot grows. These inserts can reduce shoe size by almost half a size,