Cycling shoes designed specifically for time trials focus on reducing weight, aerodynamics, and transferring power to the pedal as efficiently as possible.
Note: The UCI has recently informed Bont that it is officially banning the "Crono" from competitions based on the view that the design of the Crono contradicts the UCI's article 1.3.033
“It is forbidden to wear non-essential items of clothing or items designed to influence the performances of a rider such as reducing air resistance or modifying the body of the rider (compression, stretching, support).
Items of clothing or equipment may be considered essential where weather conditions make them appropriate for the safety or the health of the rider. In this case, the nature and texture of the clothing or equipment must be clearly and solely justified by the need to protect the rider from bad weather conditions. Discretion in this respect is left to the race commissaires.
Bont is in formal communication with the UCI regarding this matter stating: ... "it is totally contradictory to the standards they have set by allowing countless manufacturers to produce items such as skinsuits, aero helmets, booty covers, etc, etc."