Belleville 918z Tactical Research Chrome Side Zip Hot Weather Black 8 inch Boot Leather Rubber sole Shaft measures approximately Mid-Calf" from arch Smooth, cowhide leather and Destination P nylon mesh Side zip with molded security overlay StreetNav outsole has a unique cleat and lug design for superior traction in multiple environments Aero-Spacer breathable, hydrophilic lining Low profile lace-lock hook and "Ghilly" style lacing system provides a secured and customized fit