While sitting in socked feet, evenly hold a fine ballpoint pen perpendicular to the ground and outline the foot all the way around. Measuring the length in inches, from the longest point of your foot to the back of your foot. DO NOT TILT the pen.
Hook the measuring tape under the heel and round to the front of the ankle.
Under the arch and around the top of your foot.
The widest part at the front of your foot.
First measure from the ground up your leg 12-inches. Second, measure from the 12-inches the width of your calf. (This measurement is very important. Average boots are 12 inches tall.) Available boot height shafts are 10, 12, 13, and 15 inches tall.