Designed for training and competition, the Ventilator Tri-Top is anatomically engineered to enhance the wearer's comfort and performance during the unique stresses of a triathlon while providing maximum cooling. The upper body CW-X Support WebTM targets the trapezius muscles and scapular bones of the upper back for improved posture and more controlled shoulder and arm movement. Mesh ventilation panels allow hot air to escape and cool air to enter, reducing heat fatigue and improving circulation.