Invisible insole for height increase, from 3 to 9 cm, booster cushion, adjustable fit, shoe insert, heel lift, full support, foot pad, absorbent. Adds 7.6–10.2 cm of height. Suitable for sneakers, formal shoes, and casual footwear. Designed to remain hidden inside shoes for a discreet lift. Breathable design with air-cushioned support for enhanced comfort. Optimized thickness ensures a secure fit without making shoes feel tight. Features include adjustable height, low-profile construction, comfort, impact resistance, and breathability. Made from EVA and fiber materials. Unisex design. Color: Black. One size fits most: full cushion fits shoe sizes 22.5–27 cm; half cushion fits length 12.5 cm. Note: Measurements may vary by 0.5 cm due to manual measurement. Package includes: 1 pair of height-increasing insoles.