The ergonomic sole CARNAC Ergosole has been developed to allow to increase comfort while improving the rest. ered with a soft and pleasing-to-the touch textile, it consists of : - The membrane called DS2. Exclusively used by CARNAC in the cycling field, the DS2 membrane is composed of polyethylen and silica (Polyolefin). This provides outstanding insulating properties (cold and hot). This microporous membrane is also permeable to the water vapour. Due to this feature, it fights efficiently against the harmful effects of sweating and more generally moisture because it absorbs a lot while drying quickly - The design of Ergosole is perfectly adapted to fit a large number of morphologies thanks to the use of a complex foam with differentiated density The sole is fitted with a rear stabilizer to block the sole and the foot in the heel of the shoe more easily It is also equipped with a vibration-proof pad in the area of metatarsus in order to absorb practically any shock and multiple micro-vibrations which result from the evolution of the materials in the cycling field. A higher metatarsus button will allow to ease the venous return thanks to the pumping effect that it generates. The built-in semi-rigid arch support will help progressively the action of the leg on a vertical axis.