Is Endorphin Speed 5 really better than the Speed 4?
Yes — the lineage critique is consistent. The first-run reviewer ran through ES2 (loved), ES3 (liked, softer), ES4 (didn't like, baggy and bottoming out), and ES5 (back to favorite since ES2) I had no such pain in the ES5 and I'm glad for it. True to size fit perfectly. Buy ES5 with confidence if ES4 disappointed you; the upper is lighter, the rocker is smoother, and the underfoot is firm and snappy rather than dead.





