The XLAB Aero Carbon Wing Carrier positions your bottles and storage bag in a prime aerodynamic position behind the athlete, where air pressure and overall drag decreases. This system has been improved aerodynamics optimized through real world testing and over 260 Computerized Fluid Dynamic (CFD) aero simulations. The result is a system that effectively creates no additional drag while allowing airflow to quickly become streamlined and increase speed. Using the AERO CARBON WING can save over 7.75 minutes over the course of a full distance triathlon!