“…The historical background revealed a great concern with reducing drag by using the most appropriate swimsuit for the period (Foster et al, 2012;Hagedorn, 2013) and for the material (Matsunami and Taimura, 2008;Abasi et al, 2013;Issurin et al, 2014), to bring about a significant improvement thanks to technological innovations (Mountjoy et al, 2009). Since the 1930s a variety of studies had been carried out, mostly with triathletes (Parsons and Day, 1986;Sharp and Costill, 1989;Toussaint et al, 1989;Cordain and Kopriva, 1991;Chatard et al, 1995;Starling et al, 1995;Trappe et al, 1995), in which the conclusions were a long way from extrapolated to the competitive swimming of the time, before FINA approved the use of high-speed swimsuits in 1999, also known as technological or modified swimsuits (Craik, 2011;Foster et al, 2012).…”