Inchworm Spiaggia Inchworm (in yellow) shoes are design specially for kids, both boys and girls. These shoes grow with your kids as your kids feet grow, one full size in two half size increments. With the I fit System you have the possibility to adapt the shoes to your children feet. Inchworm shoes are made in two parts with rubber outsole & PU midsole for the best comfort and support with anatomic insole and latex heel pad. The uppers are made from quality leathers and synthetic mesh. Inchworm shoes will last approximately 3-6 months longer than an ordinary pair of shoes. Simply push the button on the side of the heel and watch in amazement as the shoe grows.