Feature:1. It is made of silica gel, with strong adsorption, good elasticity and not easy to deform.2. This running insole is easy to clean, reusable and has a long service life.3. The foot sole is designed to fit the shape of the foot, massage comfortably, and balance the force, making walking more comfortable.4. Soft and comfortable, the silicone material is more elastic, shock‑absorbing and pressure‑relief, suitable for many situation.5. There are three sizes in total, you can choose according to your own needs.Specification:.Condition:100% Brand New Item Type: Silicone InsoleColor: Blue and WhiteMaterial: SiliconeSizeLengthWidthHalf Sole ThicknessBulge ThicknessHeel ThicknessS(40-42)26.2cm / 10.3in9.5cm / 3.7in0.4cm / 0.2in0.9cm / 0.4in0.75cm / 0.3inM(43-44)27.2cm / 10.7in9.8cm / 3.9in0.4cm / 0.2in0.9cm / 0.4in0.75cm / 0.3inL(45-46）28.2cm / 11.1in10cm / 3.9in0.4cm / 0.2in0.9cm / 0.4in0.75cm / 0.3inPackage List:1 x Pair of Silicone Insole