Replacement Saucony Running Pwrrun ETPU Foam Insole GK-1872
[GK-1872]

5 of 5 Stars These are fantastic insoles, and can transform mediocre shoes into great shoes. I’ve added them to the Adidas Boston 10/11, Saucony Endorphin Speed 2, and Brooks Glycerin 20s, all for a vast improvement.