please see size chart below 

37= 6 1/2

38 = 7 1/2

39 = 8 1/2

40 = 9 1/2 etc.

Tucci Time letter sizing corresponds to the height and calf combination

Please call Luxe Eq at 512-673-0149 for any sizing questions  

Please note below the numbers for height and calf are in centimeters (cms).