Plastic material. Although it has closed down, some stores can still get authorization from the brand to make hang tags. For example, EVA plastic, insoles made of this material will leave marks when pressed with your fingernails. This material has good support and high elasticity, and is mostly used in sports shoes. However, its breathability is very poor, so it is not suitable for people whose feet are prone to sweating.

1. Insoles are generally made of EVA plastic. Insoles made of this material will leave traces when pressed with a fingernail. This material has good support and high elasticity, and is mostly used in sports shoes. However, its breathability is very poor, so it is not suitable for people whose feet are prone to sweating.