Swim fins is our preferred choice when it comes to training aids. When swimming, the primary problem swimmers have is that their legs are sinking. Therefore their body position deteriorates and their speed decreases. Then everything falls apart.
Swim fins, on the other hand, increase your speed. When your speed increases, your body position is improved and you stay flat in the water. You can focus your energy on your technique and don't have to worry about your legs falling at the bottom of the pool.
Short Blades vs. Long Blades Swim Fins
A common error swimmers do is that they choose long blades swim fins thinking that they will get a better workout. Error! Indeed, the length of the blades doesn't change the quality of the workout. The length only changes the speed of your feet. The longer the blades the slower your feet will move. We suggest using short blades swim fins because these will increase the speed of your feet - Very similar to the kicks when you don't have swimming fins on - And you will get a better workout. Our conclusion: Use swim fins for technique, speed and strength.