The Original Force Fin was the first model that float tubers discovered. Word spread quickly among tubers that this fin made a difference, nothing else compared to it even though there were fins on the market that were, supposedly, designed for tubing. Originals are size specific and are usually worn over booties but can be worn over wading shoes in a larger size.
Higher stiffness and rebound then the Original Force Fins. These fins were used in setting a World Diving Record. Worried about wearing them over wading shoes?The US Special Forces wear them over combat boots! Pro Force are size specific and usually worn over booties but can be worn over wading shoes in a larger size. A fin tether is recommended with these fins.