We currently have men’s sizes 8-13 (including half sizes).

We currently offer a regular / size D width.

Yes! All shoes come with a 30 day limited warranty on manufacturing defects.

Yes, our shoes have easily removable/replaceable inserts which makes the shoes
orthotic compatible.

Each pair is packed with quality materials such as full grain leather (hand polished),
custom Ortholite high performance inserts, Outlast temperature regulating
material, premium leather lining, suede heel cups, and custom outsoles which
are constructed for flexibility and long lasting wear by using high carbon
content rubber. We used strobel shoe construction where the upper material is
sewn to a fabric bottom creating what is called a sock. The upper and bottom are
then joined by a strobel stitch, using a strobel machine. The upper sock is
then tightly lasted and cemented to the midsole and then to the outsole. Then
the Vechain smart tag is heat transferred onto the tongue.

Yes, we are using a material called “Outlast” that was designed and certified by NASA. More info here: https://www.outlast.com/en/discover-outlast/origins 

No, our shoes are set at an optimized drop of 2mm.

Fibonacci Footwear will accept any unworn or unaltered merchandise
within 30 days of the original purchase date no questions asked and reserves
the right to deny refunds for a returned item that does not comply with this

The VeChain technology allows our customers to authenticate that the
product was indeed manufactured by Fibonacci Footwear which reduces counterfeit
issues and helps track our product through the supply chain ensuring timing
delivery to you. Each pair receives a unique VeChain Smart Tag adhered to the
tongue. You can verify your product information by scanning the Smart Tag with
any smartphone.