Key features Bold and distinctive design DNA Improved step-in experience Speedboard® attached to heel clip for support and heel hold Stabilized heel pillow for added stability and speed Better fit With Zero-Gravity foam and a slightly thicker underfoot wall for comfort and stability. A nylon blend Speedboard® provides plenty of flex and support. Plus, the engineered mesh upper is inspired by the Cloudboom Echo 3's materials, so it’s super lightweight, breathable and is soft to the touch. Innovative materials The majority of colorways feature dope-dyed yarn in the upper – a coloring process that uses 90% less water. The shoe also uses 50% bio-attributed Zero-Gravity foam, made of renewable materials like waste cooking oil. Meaning 20% less CO2e emissions compared to standard EVA midsoles. A smooth ride The step-in experience is improved with a wider middle bootie – and a more stable heel pillow, to help you move faster, too. Thanks to the high 14 mm heel-to-toe drop, the overall feeling is smooth and bouncy. Worn only a few times, comes with box