Sleek athletic shoes by On Running. Fits true to size. Features advanced Cloudtec cushioning. Only worn once outside. Brand new. No original box. Key features:Semi-transparent upper with super-soft feelSoft Zero-Gravity foam midsole for comfortFlexible, nylon blend Speedboard® for energy returnImproved step-in and heel-hold experienceBreathable upper50% bio-attributed midsole made from renewable materialsWith 20% less CO2e emissions than standard EVA midsolesComes in a recycled paper box