Feel union of the body and mind when you slip into the Nike Dual Fusion ST 2 and shed all troubles in a healthy cardio session. Update to the Dual Fusion ST, SKU#7646534. 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. Measurements: ; Weight: 9 oz ; Product measurements were taken using size 8.5, width B - Medium. Please note that measurements may vary by size.