Sidi T 4 Air 2017

The “politex†material is constructed of several overlapping layers with different physical-mechanical properties, the compacted PVC is then coupled to two fabrics (knitted fabric + felt) that is then is film dyed for long-lasting color retention. “Politex†offers strong resistance to ripping, laceration, stretching and fading. “Politex†is made in strict compliance with European regulations and is a totally “green†product.
The reinforced heel keeps the foot in a optimal position and avoids the shoe being deformed by extreme performance or prolonged pressure.
For walkability, Sidi cycling shoes include a replaceable polyurethane heel pad.
TWELVE CARBON COMPOSITE sole is made with two different materials blended together, nylon and carbon fibre. It is made out of injected Carbon Fiber in a matrix of Nylon. The Nylon used doesn’t absorb water and doesn’t lose rigidity in hot or humid weather or as it ages. The result is a significantly lighter and stiffer sole.