TheCloudflow 4 by ON is the pinnacle of running trainers. Constructed with 100% recycled polyester, theCloudflow 4 features an ultra-thin woven upper for extra comfort and breathability, whilst the spoon-shaped, nylon blend Speedboard® outsole issnappier, stronger, and lighter than ever before. ON Cloudflow 4 Glacier - 100% recycled polyester - Ultra-thin woven upper - Spoon-shaped, nylon blend Speedboard® outsole. Colour: white