GRAND. 36Ø DESIGN AND ENGINEERING ELEMENTS. UPPER:Built for Ideal Fit Back pull tab allows for easy on and off. Ghillie cord lacing system + tongue and lining construction designed to provide optimal adjustability.  EVA footbed cushions every step.  MIDSOLE:Grand 360 EVA midsole with distinctive ZERØGRAND 5. 0 diamond shaped design allows for greater flexibility while the cushioned underfoot foam compound provides a softer ride. Soft and flexible welt material combined with welt cutout promotes additional flexibility. OUTSOLE:Full length rubber designed to allow midsole flex grooves to move freely. The perfect balance of traction and flexibility.