The Orthaheel bio-mechanical support is designed to prevent excess foot pronation. One look at the heel and arch area of this sandal will tell you it's no ordinary "slide". The orthotic design helps "reclaim" the natural footprint by restoring the foot's natural (neutral) alignment, enabling the feet, ankles and legs to function as efficiently and dynamically as they were intended. Orthaheel is ideal for heel pain and plantar fasciitis, moderate to excessive pronation, and as a complimentary treatment for those who wear orthotics.