2XU Aero 9 Inch Tri Shorts From biking to running to the finish line, the Aero 9" Tri Shorts will get you through your next race with maximum power and support. Constructed from a powerful, lightweight PWX fabric the Aero Tri Shorts features a circular knit with 360-degree stretch that provides a comfortable fit for active movements. The PWX fabric offers a compressive feel by reducing muscle movement through the lower body increasing performance and reducing muscle fatigue. A premium Italian engineered grown-on silicone gripper has been used to ensure the shorts always stays in place, the silicone prevents the shorts from riding up increases overall comfort, and reduces the risks of chafing and irritability. The TMF Aero Tri Chamois has been specially fused onto a high-density, hydrophobic foam base to provide moisture management and added comfort so you can go the distance with ease. The light yet supportive chamois provides ample support whilst cycling yet remains