Aqua Lung Slingshot Open Heel Fins Size Chart
Shoe Size Small Medium Large/X-Large
Mens 6-8 9-11 11-13
Womens 7-9 10-12 13+

For sizing purposes; If you wear a boot with a hard sole, add one size to your regular shoe size.

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