Invisible Height-Increasing Insoles (3-9 cm) Increase your height discreetly with these invisible insoles, adding 3 to 9 cm of height. Ideal for sneakers, formal, or casual shoes, these insoles offer a hidden boost that no one will notice. Breathable & Comfortable Design Featuring air-cushioned cups, these insoles provide optimal comfort for your heels, ensuring a relaxed, all-day fit. The breathable design keeps your feet cool and comfortable without making shoes too tight. Adjustable & Impact-Resistant Customize the height adjustment for the perfect fit, and enjoy long-lasting impact resistance. Made from EVA and fiber materials, these insoles are designed to be durable, comfortable, and breathable. Unisex & Versatile Fit One-size fits most, with a full cushion size range of 22.5cm-27cm and half cushion size of 12.5cm. These insoles are suitable for both men and women, providing a versatile solution for any footwear.