These fins are designed to help you fight the current and improve your speed. The open heel design with a spring strap makes them easy to wear and adjust, ensuring a comfortable fit for the wearer. They are also lighter than traditional jetfins, which means they won't weigh you down and make you feel tired. 
In addition to their practical benefits, these fins also come in nice colors that can make your diving more enjoyable. Whether you're a beginner or an experienced diver, these fins can help you improve your finning technique and speed. 
Overall, if you're looking for a way to make your finning more efficient and enjoyable, these fins are a great choice.