The quality or state of being supple; flexibility; pliableness; pliancy.

the gracefulness of a person or animal that is flexible and supple

a quality of highly conditioned leg muscles that allows a rider to pedal at high cadence with smoothness and power. Also known by the French term, souplesse.

the property of being pliant

Pliability; ability to smoothly adjust the carriage (longitudinally) and the position or bend (laterally), without impairment of the flow of movement, or of the balance.