Sperry Top-Sider Women’s Alpine Boot. These boots are seam sealed, and with a weather proof construction these boots will keep your feet dry in cold and wet conditions. These boots also feature a lace up style with adjustable buckle detailing, a medial zipper for easy on and off wearing, and a rubber sole with Razor Cut Wave-SipingTM for better traction in wet or dry conditions. These boots are lined with Thinsulate® for added warmth. Shaft measures approximately 9″.