Elastic soft material: The heel lift insert consists mainly of highly elastic silicone material, which softly protects the heel, has a high adsorptive power and does not move in the shoe These durable heel cushions are durable and reusable and suitable for both men and womenReduce 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 reduce the pressure on the sole of the foot and achieve a non-slip and stable effectAdjustable height: the height increase insole consists of 3 layers of the pad that can be attached or removed through the honeycomb buckle to freely adjust the height, minimum height is 08 inches / 2 cm, and maximum height is 2 inches / 5 cm 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 help the feet absorb sweatUse: These insoles are suitable for both men and women, for all kinds of shoes, such as running shoes, festive shoes, boots, sports shoes, work shoes, leather shoes, etc, it will be a great product to help you secretly increase your size