Sidi t 4 air carbon composite shoea quality lightweight and performance ready shoe from sidi this t 4 air carbon composite shoe is ideally suited to the triathlete who needs a quality shoe for their bike leg thats easy to get on and off yet performs like a high end road shoe featuring a highly breathable and perforated upper alongside a carbon composite sole that provides a rigid platform these t 4 air carbon composite shoe are super quick to open or close and take on and off these sidi sho