Nebula is Geox iconic and technological casual sneaker, extremely lightweight and ultra breathable, with maximum levels of comfort and cushioning. Perforated sole with Geox patent for breathability & performance. Net breathing system for extra breathability on the sole. 3D rubber inserts on the outsole for grip & durability. EVA sole for lightness, cushioning, & flexibility. Wide toe box for comfort. Special lining with 3D spacers for maximized breathability. 3D mesh lasting footbed for cushioning & breathability. Upper made with water repellent materials.