Patent ID: 8171589

Claim:
A method of producing an individually formed insole, comprising the steps of: providing an insole preform that comprises at least one layer made of thermoplastic material of one of the following: ABS, PVC, A-PET and PETG, said thermoplastic material becoming plastic above its glass transition temperature, which is substantially under 95° C. and above 45° C., wherein the at least one layer of thermoplastic material is configured to reach out from under a heel of a foot only to the metatarsophalangeal joint of the foot, and a lower layer configured to be placed against the footwear, wherein the lower layer is configured to reach from under the heel to the metatarsophalangeal joint and extend further to a toe of the foot; heating the preform above the glass transition temperature of the thermoplastic layer in case the preform lacks preheating; guiding the client to step on the heated preform; adjusting the client's foot so that the plantar arch settles to a normal high position; adjusting the angle of the ankle to the right position; and waiting for the temperature of the heated insole preform to drop under the glass transition temperature of the thermoplastic.