Size: S EU34-38, length is 24cm, M EU 39-41, length is 26cm, L EU 42-45, length is 29cm Make of EVA and PU material and provide more better cushioning effect and comfort. Effective support arch to protect heel and reduce pressure. Correct flat feet and lower bow, reduces stress on knees and lower body. Fit For Most Footwear such as loose sport shoes,boots, casual shoes , hiking shoes work shoes, and so on. Ergonomics and Medical Science Design. The three support points on forefoot, arch and heel are suitable for arch pain. Package included: 2 Pair insoleNotes: The color of the item may be slightly different from the picture due to the difference in light and screen. Please allow a difference of 0.5- 2 cm due to manual measurement. We guarantee the style is the same as shown in the pictures, but not the same performance on different bodies as on the model. Thank you! We guarantee the style is the same as shown in the pictures, but not the same performance on different bodies as on the model. Thank you!