Cobalt Blue Tieks. Play with color in Cobalt Blue Tieks. With its vibrant blue hue and natural distressed finish, Cobalt Blue exudes a freshness that complements outfits year-round. 100% premium, soft, top-grain leather ballet flats Non-elasticized, cushioned back Non-skid rubber soles and comfortable cushioned instep Size 8 * Good used condition- scuffs on heels and toes (see pictures). No rips