Pes planus (flat foot) is more then 10% from the active population. The aim of the study is to research how could be make  the plantar correction using insoles in flat foot. Biomechanics evaluation consists in determination of active area contact like percent from total plantar area. The conclusions of our research open the new way for approach the flat foot in the perspective of how could be the workflow for design the insole for flat foot. Also evaluation of  morphologic indexes and correlate with plantar pressure distribution and active contact area correction limit the evolution of flat foot, the unwanted effects under the lower limb. Also, the check of insole using scanner method help to adjust the design process.  

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