Zappos.com is proud to offer the Nike - Dual Fusion ST 2 (Black/Sport Red/Metallic Dark Grey) - Footwear: Your goal is to combine a healthy diet with routine workouts to achieve the physical results you seek. Let the Nike Dual Fusion ST 2 carry you down the road to victory! ; Update to the Dual Fusion ST, SKU#7646273. ; A running shoe designed for the neutral to mild over-pronator who requires cushioning with just a touch of stability. ; Breathable mesh upper. ; Strategically placed synthetic overlays provide lightweight durability and structural support. ; Internal midfoot strap is incorporated into the lacing system and down through the midsole, promoting a snug, secure fit. ; Lightly padded tongue and collar for added comfort and performance. ; Innersleeve offers a great step-in feel. ; EVA insole supplies lightweight underfoot plush. ; Dual-density Phylon midsole is comprised of a soft foam incased within a firmer foam, providing a combination of lightweight cushioning and support. ; Molded siping on the firmer-density foam is designed to act as a lateral crash pad, promoting a smoother transition at heel strike. ; Solid rubber in a waffle pattern outsole delivers durable, multi-surface traction and light cushioning. ; Forefoot flex grooves allow the foot to move more naturally through the gait cycle. ; Weight: 10 oz ; Product measurements were taken using size 9. Please note that measurements may vary by size.