When fashion and function come together seamlessly.The women's Glycerin Max optimizes airy softness and electrifying responsiveness at every point of every step. How? Two types of nitrogen-infused cushioning, seamlessly tuned into one midsole. That's running redefined. Best For - Road RunningEffortless TransitionsProtective Cushioning Innovative DesignFeaturesTuned cushionUltimate protectionEffortless transitions