Fin keepers are the greatest product you may not even know about!
They give you more propulsion in the water by giving you 100 percent energy transfer from your legs to your fins. This is especially important if you fins are just a little loose on your foot.This can also happen when you switch from thicker booties to thinner booties or no booties at all.
Fin keepers prevent fin sores by keeping fins tight.
Fin keepers also keep you safer by preventing your fins from coming off during surf entries or especially hard kicks.