Saucony® Endorphin Elite 3 : The Saucony Endorphin Elite 3 is built for one purpose : Speed. This is a true carbon-plated racing shoe engineered for marathon efforts and fast race-day performance, combining aggressive propulsion with premium cushioning.At its core is incrediRUN foam, delivering lightweight energy return with a responsive, bouncy feel underfoot. A slotted carbon fiber plate works alongside SpeedRoll geometry to create a smooth, rolling sensation that keeps you moving forward efficiently with every stride.The lightweight race-fit upper locks in securely without excess structure, while the PWRTRAC carbon rubber outsole enhances traction and durability where you need it most. Vegan construction and recycled materials round out this high-performance build.