Men's Luxury Suede Chukka Boots & Derby Shoes for Purchase NASA Technology, a temperature-regulating sole, and blockchain authentication with full grain leather are all included. We set out to design the ideal formal shoe that also functioned as a sneaker. We have created the finest in fashionable and athletic footwear by merging cutting-edge technology with classic design. Meet the first Blockchain-authenticated NASA-inspired temperature-regulating sneakers. Designed in the United States and crafted using the finest leathers and suedes. Using VeChain Technology, each Fibonacci sneaker is validated on the Blockchain. Not only does VeChain authentication technology allow us to trace our items through the supply chain, assuring timely delivery, but it also allows the consumer to authenticate the product's legitimacy.