? Features: High elastic high hardness. Improve balance， reduce foot joint and back pain. Hexagonal honeycomb like pattern in the forefoot， relieve stress， soft and no deformation. Backside have size line， you can tailor according to your size. Great for relieving foot pain and discomfort， like flat feet correction， arch support， shock absorption etc.   Specifications: Material: PU Color: Yellow， Royal blue and Blue Model: S， M， L (Optional) S-Size: Approx.23 * 8.5 * 2.5cm / 9.1 * 3.3 * 1in M-Size: Approx.26 * 9.5 * 2.5cm / 10.2 * 3.7 * 1in L-Size: Approx.29 * 10 * 2.5cm / 11.4 * 3.9 * 1in Package Size: Approx.12 * 33 * 3cm / 4.7 * 13 * 1.2in Package Weight: Approx. 149g / 5.3oz(L); 121g / 4.3oz(M); 103g / 3.7oz Note: May have Slight shade variation between the actual product and pictures due to illumination， photographic angle and configuration of monitor. We will try our best to send the product with the illustrated color as possible. Package List: 1 * Pair of Insole