The primary materials that compose this product contain a minimum of 20 percent recycled content.Best for Running, Road running.For the softest and smoothest running sensation, the On™ Cloudsurfer 2 shoes are engineered without a Speedboard - instead, relying on the structural cushioning system: CloudTec Phase. The breathable mesh upper is made from 88% recycled polyester with embroidered overlays that are also made with recycled yarn to provide support and structure around the foot. They are designed with a textile insole and lining for added comfort. Using FEA technology, different outsole designs have been simulated and analyzed to find the optimal geometry for improved durability.Softer and smoother: Upgraded CloudTec® Phase cushioning offers an even smoother heel-to-toe transition, creating a supremely soft sensation underfoot.More durable tread: Crafted with a more durable outsole with thicker padding and smaller cavities in the tread. Built to last, this updated geometry supports an even smoother ride.Boosted breathability: Made with 88% recycled polyester, the re-engineered upper now features a more breathable mesh construction.Synthetic outsole.Imported.Please note that ONLY the Cloud 5 Terry, Cloud 5 and Cloud 5 Waterproof shoes feature an extra pair of conventional laces, along with the easy-entry speedlaces.Product measurements were taken using size 9, width M. Please note that measurements may vary by size.Measurements: Weight: 9.4 oz SKU 9981514