Women's Endorphin Pro 5This is the most advanced women's Endorphin Pro Saucony has ever engineered. It is built to deliver a return on investment you can feel with every stride. At its core is a new dual density engine: a high performance fusion of PWRRUN PB and Super Critical PWRRUN HG for elite energy return. The brand has paired this with a re engineered slotted carbon plate that optimizes SPEEDROLL technology, offering a smoother transition and an explosive snap off the