Women's Naturalizer Kieran Pumps The Kieran sandal is a strappy slingback design that’s as chic as it is comfortable. A synthetic upper with an open toe and Contour+ Comfort technology offers a flattering, all-day fit. The cushioned insole and stable 2.375" heel deliver support, while the adjustable slingback strap ensures a secure step. Stylish enough for dressy looks and comfortable enough for extended wear, it’s a versatile wardrobe staple.