Level up your closet with a tall boots. Sylvia is a knockout silhouette complete with a sleek pointed toe and luxe leather upper. Just add slim pants or a sleek dress for an instantly polished look. Heel Height: 2.8 inches. Toe: Pointed Toe. Closure: Zipper. Measurements based on size 6 boots. For each half size larger, shaft height increases by. 12 inches, circumference by. 10 inches. Boots Shaft: 15.7 inches. Calf Circumference: 14.1 inches. Material: Leather & Synthetic. Insole: Synthetic.