Features:

• NBzip heel
• ACTEVA LITE midsole
• ABZORB SBS forefoot
• Ndurance outsole

Editor Reviews:

Product Description:
The New Balance 8507 Zip is an innovative running shoe built for the athlete who has a neutral running gait and is looking for a responsive, stylish ride.Synthetic leather and breathable mesh upper with reflective detailingActeva™ Lite premium midsole is 24% lighter than standard foam, cushiony Abzorb® SBS in forefootNB Zip™ heel cushioning absorbs energy and quickly springs back

Amazon.com Product Description:
Made for competitive athletes who want a shoe that works as hard as they do, the MR8508 from New Balance features NB Zip cushioning technology for extraordinary comfort and support. The Acteva Lite midsole boasts optimal compression set properties for great support, and the Abzorb SBS forefoot provides incredible shock absorption and no compression set. The breathable mesh and synthetic upper resists wear and tear, while the N-durance rubber outsole offers maximum durability, even in high-wear areas.

Rating : - Works as advertised
I bought this shoe without trying it on beforehand. It was on sale and I had good experiences with NB shoes in the past so I took a chance and it was well worth it. I have wider feet so I also appreciate that NBs come in Wide and Extra-wide flavors. Haven't used them extensively but from my experience so far I have no complaints! Excellent shoe from an excellent brand.