Cole Haan ZERØGRAND Radiant Slip-On Sneaker size 8 Cole Haan, ZEROGRAND Sneakers for Women. Cement ZERØGRAND Radiant Slip-On Sneaker from Breathable engineered stretch knit for all-day comfort, fit, and supportDie-cut Ortholite® footbed to enhance breathability and long-term cushioning. Ortholite® is a registered trademark of Ortholite. EVA midsole for optimal rebound with every step. Double-rubber pod outsole for ultimate traction.