Englin's Presents the WR858WR from New Balance NB ZIP controlled cushioning in heel provides durable responsiveness ACTEVA LITE premium lightweight midsole provides optimal resistance to compression set - 24% lighter than standard foam Abzorb SBS in the forefoot provides 5-1% more effective cushioning than original Abzorb with no compression set N-Durance rubber compound for maximum outsole durability Synthetic/Mesh upper provides lightweight comfort and support Reflective detailing enhances your visibility Shoe Weight: 311.8 grams ( 11 oz )