<http://schema.org/description>
"Lechal shoes and insoles are paired with a navigation app on the user's smartphone, and guide the user by causing one or other of their shoes to vibrate, letting them know when and where to turn.\r\n\r\n"^^<http://www.w3.org/2001/XMLSchema#string>
<http://newatlas.com/lechal-haptic-feedback-navigation-shoes/30939/>