The Dress Penny has a 100% rubber sole with a shock absorber in the heel for comfort.  Fluchos has also placed an 'air injection' technology in the sole to permit air to flow under the insole.  This helps the shoe/foot to breathe.   These comfort features are combined with leather uppers that are finished with natural waxes for a stylish, yet comfortable shoe.  Available in whole metric sizes.  Made in Spain.