PWX Flex Highest denier delivers high power. Most flexibility & breathability. Circular Knit Technology 2XU is the only compression brand employing a circular high gauge knit facbric structure to deliver an evenly distributed 360 degree stretch compression. Endurance Invista Lycra 2XU Compression delivers long life performance through the use of Invista Lycra. Vitally important to achieve a high level of elasticity & maintain compressive properties over the life of the garment, Invista Lycra enhances durability. Moisture Management The lower denier (high filament) yarn on the outside draws moisture through from the high denier (low filament) yarn on the inside. In addition, the inside yarn transports water through a capillary action. This combination multiplies the moisture management performance, keeping you comfortable. Antibacterial Eliminates bacteria & body odour with a high performance nano silver application. UV Protection High Sun protection factor means long sessions in the sun wont cost you your skins health.