Saucony released the Endorphin Speed 6 on 15 October through its own website and selected retailers. The shoe has a suggested retail price of $175 and is offered in men's sizes 7 to 15 and women's sizes 5 to 12. It is the latest version of the brand's best-known plated trainer, positioned for speed sessions, tempo runs and daily training rather than race day alone.
The headline change is the midsole. Saucony describes the new PWRRUN PBX as a beaded, Peba-based superfoam that delivers more cushioning with less weight, replacing the PWRRUN PB used previously. The company says there is 2mm more foam underfoot, which it calls a higher stack. Retailer listings put the stack at 38mm in the heel and 30mm in the forefoot, an 8mm drop, against 36mm and 28mm for the Speed 5.
The plate has also been redesigned. It remains nylon rather than carbon, and Saucony says the new shape enhances its SpeedRoll geometry for smoother, faster transitions and more propulsion. One retailer review notes that a nylon plate flexes in a way a carbon plate cannot, and that the plate extends into the toe box. That makes the Speed 6 a different proposition from the carbon-plated racers that have dominated this autumn's launches.
On weight, Saucony states only that the shoe is lighter than before and does not publish a figure in its release. Running Lab lists 8.2 oz (233g) for the men's shoe and 6.9 oz (198g) for the women's, compared with 8.4 oz for the Speed 5. Retailers also list a slightly higher price of $180, so buyers may see a small difference depending on where they shop. The upper is a lightweight, breathable mesh and the shoe uses an SRS sockliner.
The launch lands in a busy month for the category. Nike's Alphafly 4 reaches a wider market from 29 October at $280, and Adidas has been widening access to its Adios Pro Evo 3 at a far higher price. At $175, the Speed 6 sits well below those racers, which is likely to make it an easier choice for runners seeking a single shoe for fast training. Independent testing will show whether the added stack and new foam improve on its predecessor's reputation.