Height Adjustable: There Are Four Layers of Insoles, Each Layer Can Be Shifted Separately, 1 Layer: 3 Cm, 2 Layers: 4.5 Cm, 3 Layers: 6 Cm, 4 Layers: 7.5 Cm, The Height Can Be Adjusted Between 3.2 Cm and 8 Cm, Which Can Be Increased. Correct The Length of The Leg or The Difference In The Length of The Left and Right Legs. . Shoe Size Can Be Cutthe Back of The Insole Has A Size Line and Shows The Size of The Shoe. You Can Freely Adjust The Insole, So You Can Easily Adjust The Insole To Fit The Shape of The Shoe. The Length of This Four-Layer Insole Is About 270Mm, Suitable for Loose Men or Women'S Shoes and Boots. (Suitable for Size 35-44 Shoes). Cushion Air Cushion Design: This 4-Layer Insole Features An Elegant Cushioning Air-Cushion Design With A Decompression Cushioning Airbag On The Bottom That Provides Maximum Comfort To Your Heels and Makes You Feel Relaxed All Day Long. It Can Be Worn for A Long Time and Is Comfortable To Wear. It Provides Cushioning and Padding In The Arch and Heel Area. . Breathable and Comfortable: These Insoles Allow Air To Circulate Better and Prevent The Accumulation of Moisture. There Are Ventilation Holes In The Front Sole of The Insole To Prevent The Growth of Odor-Causing Bacteria, So Your Feet Are Always Dry and Odor-Free. The Insole Can Be Cleaned Quickly and Easily To Ensure A Good Level of Hygiene. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.