2XU Apparel Size Chart These shorts use powerful compression to provide muscle support to the upper legs for greater performance and protection against fatigue. The Italian-made 120D STELVIO chamois provides maximum breathability and comfort. Features: - Lightweight yet powerful PWX 105D compression fabrics to reduce muscle fatigue - Stelvio chamois - 40mm wide Italian leg grippers for performance and comfort - Moisture wicking - Antibacterial to resist odor - UPF 50+ sun protection