equipment: EVA, set includes 2 pairs of insole (4 parts). High-elastic material, soft and comfortable, decompression and impact resistance, breathable, deodorant and sweat absorption, relieve foot fatigue, more comfortable to wear Size S: length 26cm, width 8.6cm, suitable for 35-40 EU size L: length 29cm, width 9.2cm, suitable for 40-45 EU.Height is 1.5cm 2.5cm and 3.5cm for your choice . Relieves congestion in the foot, ankle, Achilles tendon, knees and sometimes the back by supporting and straightening the foot, and stabilizes the entire foot in crucial places to relieve pain. ligaments and joints. The insole has a clear racing line on the back, so you can cut it freely, the sole can be adapted to the right size if necessary