The North Face Women's Chilkat II Insulated Boot Synthetic and leather Rubber sole Shaft measures approximately 7.25" from arch Heel measures approximately 1.5" Shaft Height: 7" (Size 8) Circumference: 13" (Size 8) Fit: This style tends to run small. For an accurate fit we recommend purchasing a 1/2 size larger than you typically purchase. For example, if you normally purchase a size 7, we recommend purchasing a size 7 1/2. Outsole: Rubber Upper: Leather