Design: Engineered air mesh upper blends stretch and structure with just-right breathability Made with recycled materials equivalent to 7 plastic water bottles In-Shoe Comfort: Super-soft, nitrogen-infused DNA LOFT v3 cushioning delivers lightweight comfort Soft midsole and Segmented Crash Pad promotes an easy flow from landing to toe-off Durability & Traction: New RoadTack rubber includes recycled silica and is lightweight and durable Additional Details: Weight: 8.5 oz Offset: 12mm Brooks Women's Ghost 16 Running Shoes