Most Common Cork Heel Lifts for Leg Length Discrepancies

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Atlas Biomechanics offers a range of fixed heights, the 1/4″ (6mm) thickness is the clinical standard most often dispensed by physicians and therapists for moderate leg length imbalances. These lifts are made from a medical-grade rubber-cork blend that provides a firm, non-compressible foundation, ensuring the lift maintains its exact height over months of daily use.

The Atlas Biomechanics Rubber Cork 6mm Heel Lift is the most popular height because it addresses the most common range of limb length discrepancies. It is available in bulk 10-packs or single pairs, and features an adhesive backing to prevent it from sliding inside the shoe.
For minor discrepancies or for users who need to “stack” lifts to reach a specific custom height, the Atlas Biomechanics Rubber Cork 3mm Heel Lift is the standard. These 1/8″ (3mm) inserts are often used for subtle corrections or as a starting point for patients newly diagnosed with LLD.
For more significant discrepancies, the Atlas Biomechanics 3/8″ (9mm) or 1/2″ (12mm) Cork Heel Lift is used. Because a 12mm lift is quite thick, it is typically recommended for use in boots or high-volume athletic shoes to ensure the heel does not slip out of the footwear during movement.1/2″ (12mm) Cork Heel Lift, 1 Pair (Small (2″ Wide))
Why These Are Preferred for a short leg

• Non-Compressible: Unlike foam “drugstore” lifts, the rubber-cork material does not flatten out. This is critical for LLD because even a 2-3mm loss in height due to compression can cause the return of back or hip pain.
• Medical-Grade Durability: These are designed to be “dispensed from doctor’s offices,” meaning they meet higher standards for material integrity and long-term wear.
• Width Variety: They come in Small (2″), Medium (2.5″), and Large (3″) widths to ensure a precise fit across different shoe types, from narrow dress shoes to wide sneakers.

Atlas Biomechanics is the most prescribed cork heel lifts among health professionals. Their medical grade heel lifts are considered the best on the market.