Description: The A5577W women's running shoe from Avia provides excellent fit and superior comfort for those who take their workouts seriously. ; Features Convexus LITE TRAIL Technology - A series of arch release cavities in the heel strike zone to provide a more dynamic approach to cushioning impact. ; Combination suede and mesh upper for flexible feel and added support. ; Lightly padded collar with heel pull loop. ; Fabric lining with removable, molded EVA sockliner. ; Compression-molded EVA featuring the Convexus-LITE cushioning heel unit. ; Solid rubber outsole with forefoot flex grooves. ; Weight : 9 oz ; Product measurements were taken using size 7. Please note that measurements may vary by size.