Women's Black Athletic Shorts

EUC; Lululemon low rise spandex yoga shorts (black). Sorry, I don't know what the actual name of these is. They've barely been worn and are in great condition. They are only missing the infinity elastic band within the waist area (it was the same idea as wunder trains, hotty hot shorts.... you get the idea.) These also have cute ruching on the sides. the material is maybe a bit similar to luxtreme?, but it feels way softer than luxtreme.