On Kids' Cloudswift Youth - Alloy / GlacierThe Cloudswift 4 gets a youth update with a soft, breathable mesh and secure fit. Unisex style. True to size. Materials Upper Unit: recycled polyester, TPU Bottom Unit: Midsole: Helion Outsole: Rubber Speedboard: None Technology: CloudTec Lacing: Standard Heel to toe drop: 6mm Key features Weight: 219g Adapted from the Cloudswift 4 same look and feel Slip on and off with a bootie inner and pull tabs A CloudTec midsole delivers a cushioned, smooth ride