A pair of medium - large Frog fins is about 8.5 inches wide by 25 inches long and is made of a Copolymer called ethylene - vinyl - acetate .
With a 20 % increasein useful surface area compared to a traditional fin of the same length .
A pair of medium - large Frog fins is about 8.5 inches wide by 25 inches long and is made of a Copolymer called ethylene - vinyl - acetate .
With a 20 % increasein useful surface area compared to a traditional fin of the same length .