Features1This insole can prevent forefoot external rotation and heel valgus, improve flat feet and unstable walking problems. 2The heel cushioning sheet has high density, fine and uniform structure, and excellent resistance to compression and deformation. 3Meet the three?point mechanical balances of the arch, balancing the inner and outer arches when walking. 4The three-point mechanics promotes the foot structure to be in a stable and neutral state, preventing the feet from being damaged. 5The U?shaped heel can fix the neutral heel position, wrap around the heel, prevent the heel deviation and slip, and play a better corrective role. 6Both sides are heightened to effectively protect the foot joints, guaranteed during exercise.SpecificationCondition: 100% Brand NewItem Type: InsoleMaterial: EVA+Superfine Velvet+Polyurethane foamSizeLengthWidthSuitable Size RangeXS15cm / 5.9in6.8cm / 2.7in21-24S17cm / 6.7in7.2cm / 2.8in25-27M19cm / 7.5in7.6cm / 3in28-30L21cm / 8.3in8cm / 3.1in31-33XL23cm / 9.1in8.3cm / 3.3in34-36Feature: Tailored insole: Comparing to the original insoles tailored according to the size range you need.Tailoring Step:1. Take out the original insole2. Contrast with the new insole from the edge of the heel3. Determine the cutting length edge line4. Trim slowly along the edge of the original insole5. Tailoring is complete, take out the original insole and put in the new insolePackage List1 x Pair of Insoles