Enhance any outfit with the Fibonacci Footwear professional shoes. Boasting blockchain authentication, each pair of these shoes receives a unique blockchain smart tag adhered to the tongue. This lets you verify product information when you scan it through your smartphone. Beyond this smart technology, it uses NASA-certified Outlast temperature-regulating material to keep your feet comfortable at all times. Furthermore, this collection transforms the idea of traditional dress shoes in 2 styles: the Liber Derby dress shoe and the Abbaci Chukka shoe. The former has hand-polished full-grain leather in Brown, Black, and Cognac, while the latter uses premium suede in Stone and Chocolate. Both have a premium leather lining, a suede inner heel cup, and Ortholite high-performance insoles for impact control and breathability. Moreover, the outsoles have been designed for longer lasting wear, flexibility, and enhanced grip. Finally, each shoe comes with a high-quality metal shoe horn.