Apollo Bio-Fins Pro XT Size Chart
  MD LG XL
US Men's shoe size 8-9 9-11 11 wide-13+
US Women's shoe size 7-9 9-10 10-11
European Men's shoe size 42-43 43-45 45-48
Length (inches) 22 22 22
Width (inches) 9.25 9.25 9.25
Weight (pounds per pair) 6 6.5 6.5
These are general guidelines only, sizes are not guaranteed. But no worries, since at LeisurePro we offer our exclusive PFF Guaranty