From my racing days as a pro triathlete. I probably wore this suit in a race or two in 2003ish. It’s still in great condition. From the Swimoutlet website: Constructed from a unique DuPont T-152 Lycra® blend, the Aquapel™ fabric undergoes a series of state-of-the-art treatments that make it one of the most sophisticated competition suits available. Powerful rollers thin and lighten the fabric while retaining its strength, density and recovery. A thermal heat application then sears it to create a silky-smooth, flattened finish. Finally the fabric is coated with a hydrophobic finish, making the Aquapel™ one of the fastest technical suits on the market. • Extends to just above the knee • High velocity hydrophobic coating • Advanced compression biomechanics • Turbulence reduction • Zip up back • Bisecting hydrodynamic flow panels on the chest and rear provide vital velocity enhancements • Creation of a turbulence buffer zone between the body and the water improves glide efficiency • Engineered panels are strategically positioned to channel water away from the body • DuPont Lycra blend