 The suits seemed to improve the performance in those with larger physiques, boosting performance in some athletes more than others, depending on morphology and physiology.Since then, best times set by swimmers wearing textile materials have once again overtaken more than half of the world records recognized by FINA.On 25 July 2013, FINA Technical Swimming Congress voted to allow world records in the long course mixed 400 free relay and mixed 400 medley relay, as well as in six events in short course meters