With 2XU's form flattering, quick drying and supportive SBR SKIN X fabric plus highly breathable SENSOR MESH X, this is a truly impressive women's performance short. SBR SKIN X is engineered from powerful 70D elastane yarn with heightened compressive properties to support the wearer for greater endurance and higher power output. The 2XU SBR FLEECE uses a micro-filament polyester yarn with hydrophobic properties to keep you dry through all three disciplines.