Canvas mary jane fills a tall order. ; Hook-and-loop closure helps to provide an adjustable and secure fit. ; Flexible rubber outsole provides traction. ; Naturino designed the“Sand Effect system which mimics walking on sand and guarantees just the right stability to let your child move freely. ; Gives ideal support to the entire arch of your child's foot that will follow them throughout their development. ; Naturino™ designed the Sand Effect™ system which mimics walking on sand and helps promote just the right stability to let your child move freely.