Per Vionic website - A classic silhouette gets a modern makeover - from the upper welt-stitch details and penny loafer saddle strap to the lightweight lug sole.
Powered by Vio Motion Technology ~ Arch Support aligns your body enhancing balance and well-being ~ Stability with deep heel cup promotes full-body alignment ~ Sole Cushioning softens each step for lasting comfort ~ Flexibility flows with you for a natural range of motion. Heel measurement: 1.37" Platform Height: .75"
Those who have reviewed these shoes say they are a perfect fit.