Material: The heightening insole is made of velvet,memory cotton,and PU.It is breathable,comfortable,and durable.Even if you wear it all day,you will not feel uncomfortable. Size: Increased insole height:3.5cm for your choice.You can choose the height you like to make your height more upright and confident. Boost Cushion: The air cushion cap provides a comfortable heel.And when you roll it up with your hands,let go and the shape will quickly return to the original shape.If you find that it is too large after buying it back,you can use scissors to cut it according to the size of your foot to keep you without affecting the comfort of the foot.the height of. Suitable For: This product is suitable for both men and women,because this insole can be cut,and the height-increasing pad is suitable for most styles of shoes,sports shoes,boots and sports shoes.Most suitable for walking insoles and long-term standing insoles.