Kodiak Women's Renee Snow Boot Leather and Synthetic Imported Rubber sole Shaft measures approximately 6" from arch Waterproof full grain leather and suede upper REPEL-X waterproof construction and 3M Scotchgard treated uppers 200gm THINSULATE insulation underfoot and throughout Removable contoured EVA insole Comfort rated: -22 DegreeF / -30 DegreeC