Regular fit Lace closure STRUNG upper Textile lining Synthetic outsole Feel The Power Of A Fine-Tuned Fit As You Tick Off The Kilometers In These Adidas Running Shoes. The Innovative Strung Upper Provides A Seamless, Lightweight Cocoon For Your Foot That Adapts To Your Movements For A Dynamic, Optimized Fit. It Rides On A 3D-Printed 4D Midsole For A Smooth, Stable Ride That Makes Your Run Feel More Like Gliding Toward Your Goals. By Choosing Recycled, We Are Able To Reuse Materials That Have Already Been Created, Which Helps To Reduce Waste. Renewable Materials Choices Will Help Us To Remove Our Reliance On Finite Resources. This Products Made With A Blend Of Recycled And Renewable Materials Feature At Least 20% Total Of These Materials.