Pearl Izumi - Shift XCR (Vapor/Bombay) - Women's: Road runners deserve the same wet weather protection as off-road runners. With full-on breathable Gore-Tex(tm)XCR weather protection for the elements, the smooth-riding Shift XCR ensures the run does go on. Gore-Tex(tm)XCR waterproof, breathable upper provides a warm, dry home for the feet in cold and wet conditions. Seamless construction eliminates blisters and points of irritation. Endo-skeletal support System(tm) (ES3(tm))uses internal webbing to hold the foot comfortably and securely. Ultra hydrophobic, breathable AmFIB(tm) Mesh repels water and maximizes the breathablility of the Gore XCR construction. SyncroC frame provides a superior cushioned, foot guidance system. Skydex(tm) heel cushioning provides performance cushioning. Exceptional forefoot efficiency is created with the forefoot H frame and high rebound foam under the ball of the foot. Deep rearfoot channel controls pronation. Forefoot flex grooves optimize flexibility, cushioning and an efficient push off. PI carbon rubber outsole offers traction and durability. Medial rubber perimeter delivers final phase medial support. 360 degrees of reflectivity ensures lowlight visibility.