Mares Avanti Quattro Plus Open Heel Fins Size Chart
  Small Regular X-Large
US Men's Shoe Size 6-9 9-11 11-13
US Women's Shoe Size 7-10 10-12 12-14
UK 5.5-8.5 8.5-10.5 10.5-12.5
Euro 38-43 43-45 45-48
Product Weight (lbs per pair) 4.2 4.75 5.2
Blade length (in)
15

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