Features:

• Get more of a good thing in the Endorphin Shift 3 Running Shoe. With a higher stack of PWRRUN foam and a deeper midsole cradle to sink into, it makes your training plan feel like vacation mode.
• Get the know the softer side of SPEEDROLL Technology with an extra 2mm of PWRRUN foam and an elevated PWRRUN sockliner.
• Durable and lightweight mesh pairs with a streamlined heel clip for support that doesn’t weigh you down.
• With a new centralized torsional heel groove, you can touch down and roll forward more easily than before.

*From the manufacturer's description