The gaerne g tornado shoes feature gaernes carbon hybrid soles which are made from carbon reinforced nylon to provide superior rigidity theyre ultra thin to ensure a minimum distance between the feet and pedals to allow for ultimate pedalling power the boa closure system allows easy adjustment for a great fit with no pressure points and the perforated synthetic upper has mesh inserts for maximum breathability if you want a super light and airy road shoe for hard training the gtornado deli