1. ??Elastic soft material??: The heel lift insert is mainly made of highly elastic silicone material, which softly protects the heel, has high adsorption power and does not move in the shoe; These durable heel cushions are durable and reusable, suitable for both men and women; 2. ??Reduce heel discomfort??: The shape of the insert is U-shaped and adapts to the foot. The soft material is comfortable to wear and elastic; The underside of the insole is a honeycomb structure that can relieve the pressure on the sole of the foot and achieve a non-slip and stable effect 3. ??Adjustable height??: the height increase insole consists of 3 layers of the pad, which can be attached or removed by the honeycomb buckle to freely adjust the height, minimum height is 0.8 inches / 2 cm, and the maximum height is 2 Inch / 5 cm 4. ??Sweat-absorbing and breathable surface??: In contrast to the inferior non-slip and hard, uncomfortable insoles, our cushions have a layer of velvet on the surface to reduce the discomfort of the silicone and to support the sweat absorption of the feet 5. ??Application??: These insoles are suitable for men and women, for all kinds of shoes, such as running shoes, festive shoes, boots, athletic shoes, work shoes, leather shoes, etc., it will be a great product to help you improve secretly your size