Soft and elastic material: the heel lift insert is mainly made of silicone material, gently protects the heel, has strong adsorption force, and does not move inside the shoe; These durable heel insoles are durable and reusable for both men and women Reduces heel discomfort: the shape of the insert is designed in a u-shape to adapt to the foot; Soft material is comfortable to wear and elastic; The bottom of the sole is honeycomb design, can disperse the pressure of the sole of the foot, can also produce a non-slip and stable effect. Height adjustable: the insole of increasing height height is made up of 3 layers of padding which can be fixed or removed by honeycomb rings to freely adjust the height with a minimum height of 0.8 inches / 2 cm and a maximum height of 2 inches / 5 cm /p> Absorbent, Breathable Surface: Unlike those slip-resistant, hard-to-rise insoles, our cushioned surface has a velor layer to reduce silicone discomfort and help feet absorb sweat Application: These booster insoles are for men and women and are suitable for all types of shoes such as running shoes, formal shoes, boots, sneakers, work shoes, leather shoes, etc., it will be a great product to help you increase your height secretly