The primary materials that compose this product contain a minimum of 20 percent recycled content.Surf the concrete with the ultra-soft On Cloudsurfer road running shoes.Recycled polyester upper and lining.CloudTec Phase® technology for noticeably active cushioning.Computer-optimized midsole provides seamless weight transfer for a smooth ride.Swiss-engineered Helion™ superfoam promotes a higher energy return.Heel-to-Toe: 10mm.Soft collar and tongue with standard lacing.Cushioning: Plush.Helion and rubber insole and outsole.Imported.Please note that ONLY the On Cloud 50/50, Cloud 70/30, Cloud Terry, and Cloud running shoes feature an extra pair of conventional laces, along with the On Cloud easy-entry speedlaces.Product measurements were taken using size 11, width M. Please note that measurements may vary by size.Measurements: Weight: 14 oz View Zappos.com Glossary of TermsFind something wrong in this description? Help us fix it! Report An Error