Aeris Mako Fins Size Chart
  SM/MD REG XL/XXL
US Men's shoe size 7-10 10-12 12+
US Women's shoe size 8-12 12-14 14+
European Men's shoe size 39-44 44-46 46+
Length (inches) 23 24.5 25
Width (inches) 9 9.25 9.5
Weight (pounds per pair) 2.5 2.75 3

These are general guidelines only, sizes are not guaranteed. But no worries, since at LeisurePro we offer our exclusive PFF Guaranty