Updated to combine PWRRUN HG previously only seen in the Elite shoe, with the lightweight propulsion of PWRRUN PB, the Saucony Womens Endorphin Pro 4 in WhiteShadow is powered by two different peba based foams for a snappy and responsive feel to your race day partner. The Saucony Womens Endorphin Pro 4 uses a fulllength carbonplate that is tuned to give longitudinal stiffness and maximum efficiency, when mixed with max stack dual foam propulsion, and Sauconys Speedroll technology you get a forward feeling motion that helps you to new times.The upper features a silkysmooth heel liner and integrated tongue system to make this racing shoe feel like an old friend as you step in. Weight 185g Stack height 39.5 31.5mm Offset 8mm Sustainability This style is vegan and contains recycled materials Snappy SPEEDROLL technology effortless speed and propulsive forward motion Carbon plate maximum and energy return and instant turnover Silky smooth heel liner and integrated tongue for a connected, comfortable fit. Ideal for competition. Cushioning: PWRRUN HG/PWRRUN PB. Surface: Asphalt. Insole: SRS. Drop: 8mm (39.5/31.5mm). Distance: 10K, Half Marathon, Marathon. Technology: S-Curved Carbon: A carbon plate for a smoother and more dynamic foot roll. 8mm Offset. PWRRUN PB/PWRRUN HG: Unleash your full potential with PWRRUN PB cushioning. This innovative foam offers higher energy return and improves running efficiency. SRS: Try our new SRS (Super Responsive Sockliner). We challenge you not to bounce. FORMFIT: Get a personalized fit with FORMFIT technology from Saucony. The shoe adapts to your unique foot shape. SPEEDROLL: Provides propulsion and forward foot motion. Weight: 185g.