2XU's compression fabric is made of a high-filament nylon which has a longer elasticity lifespan than other compression brands, resulting in more strength and a more accurate fit. All of 2XU's compression garments are tested using the Salzmann device, which is a scientifically recognized way of determining mmHg. The Australian Institute of Sport (AIS) conducts research on all 2XU apparel, according to the manufacturer.