The boots were made from soft black leather with goretex technology and a stretch textile back panel for calf flexibility.They are a classic knee length,biker style measuring 15.2 inches from the top of the heel to the top of the boot and they have a full length side zip for easy changing.The measurement around the top of the boot is 15.2 inches with the measurement taken around the outside of the boot,without expanding the elastic panel.These very classy,eye-catching boots would be perfect for the Spring season.