Featuring 2XU's impressive SBR SKIN X for enhanced power, durability, moisture management and comfort, this versatile short is suited to all swim, bike, and run demands. LD Fused Chamois for comfort to go the distance. The 2XU LD Chamois is a quick drying long course triathlon chamois fused onto a high density, hydrophobic foam base to manage moisture and deliver excellent support on the bike. 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.