Prewalker is a sock with pressure sensitive material. While dressing children with these socks, parents can easily control their children's feet health just by observing sock's color change. This color changing in a spectrum of green to red will notify parents if the shoes are too tight or too loose, which can harm children's feet drastically. It also helps them to find a suitable shoe with ideal form and size for their children. Also, observing zones in which color changes from green to red alerts parents about growing pressure and helps them to treat the problem as soon as possible.