The sporty Fly professional footwear is the only footwear on the market that complies with the EN ISO 20347 professional footwear standard and now features the FlexEnergy elastic element. The FlexEnergy heel cushioning absorbs the resulting kinetic energy and more than 55% of the energy is returned to the stride. The BOA® Fit System fastening mechanism located on the side improves ankle mobility and increases the comfort of the footwear. ESD approved.
