The Bellwether Criterium Jersey is Constructed Out of Quadra-Tech Fabric. Quadra Tech Has a Unique Box Like Construction That Increases the Outer Surface area of the Fabric. The Box Like Construction Improves the Transfer of Perspiration away From the Skin For Speedy Evaporation, while Small Channels Promote Ventilation For Proper Temperature Modulation. The Criterium Jersey Features Include an 8 Inch Locking Zipper, Elastic Free Bottom Hem and arms For Comfort, and Two Large Rear Pockets. The Criterium Jersey Has a Relaxed Club Fit.