Speedo Biofuse Training Fin
The Silicone Biofuse Training Fin is a great choice for the performance and sport swimmer looking for a short blade fin that provides power, speed, and strength.  The short blade design balances kicking tempo with a swimmer's arm stroke, but is still long enough to provide added speed and strength building.  It utilizes our biofuse dual density technology which combines hard and soft materials in a way that maximizes performance and comfort.  You will notice the comfort difference between this fin and our competitor's right away when your foot slips into the soft silicone non chafing contoured foot pocket.  But you still have the advantage of the stiff blade for maximum power while training.  Sizing may run small, so size up if necessary.