Measure carefully!
Step 1
Wrap the marked string under your toe and around the back of your foot. Do not pull too tightly as you will need some extra length for step 2.
Step 2
Now pinch the string together between
the 2 yellow lines 2.5 to 3 inches up. Do
not tighten the string around the toe, let
the extra length come from around the
back of the foot. You want it just
comfortably loose. Then mark the other end with a pen mark. Now measure
the total length of the string from the
pen mark to pen mark. This will determine your size.
Mark one end of your string
as shown (mark #1)