Foot Length
• Place a sheet of paper on the floor, against a wall
• Make sure you're wearing the socks you'd normally wear with this type of shoe
• With your socks on, stand on the sheet of paper, foot perpendicular to the wall and heel against the wall
• Using a pencil, draw a line just in front of your big toe
• Repeat for the other foot, using the longer length to determine your shoe size
• Using a ruler, measure the distance between the wall and the line you've drawn to determine your shoe size.