Baffin Women's Buk-Buk Snow Boot 100% Fabric and leather Rubber sole Shaft measures approximately 12.25" from arch Heel measures approximately 1.25" Platform measures approximately 1" Boot opening measures approximately 16" around Rated to -40 degrees Synthetic rubber shell Proprietary cold-resistant EVA midsole Integreated arch support 7-layer lining system with Thermaplush Reflective piping details Snap-close buckles make getting in and out of this attractive snow boot easy, even while wearing gloves.