When Mark uses his shinfinTM fins for fine tuning his swim technique, he feels them giving him a better natural swimming movement. When he uses them for his swimming drills, he feels them giving him a better workout in his main leg muscles. This is because they encourage a smooth swimming style with power from his hips. Most important, he feels his swim technique improvements with shinfinTM fins transfer to his natural swimming without fins too.
Mark’s review from Auckland, New Zealand
“Gives a better natural swim movement and better workout to the main muscles. And yes, the benefits transfer between “no-fins” swimming. Great Product. Thanks.”