Juan Antonio ‘Chiki’ Pérez (Spain, 6 November 1988) is a specialist in 10,000 m and road events, with multiple medals in the European Cup 10,000 m and national titles that attest to a solid and consistent career in international long-distance running.

Chiki competes with the RS-9000, the lightest shoe on the market at only 126.1 g, equipped with Light Reactive for maximum efficiency, Carbon Plate to optimise momentum and an ultra-lightweight construction that reduces load with every stride. This combination promotes running economy and a feeling of constant lightness during prolonged efforts.