The insole made of PU polyurethane material has good softness and elasticity. The key is it will not deform.The polyurethane for extra shock absorption. It is as soft and elastic as it has been for a long time.
The PU Insole can be used for all kinds of casual shoes / leather shoes / boots / winter shoes, sandals, etc. with medium / high flat heels, short heels and small slope heels.