The main characteristic of open heel fins is the adjustable strap at the back of the foot pocket. This strap allows divers to customize the fit of the fin to their foot size and wear the fins comfortably with or without dive boots. The adjustable strap typically consists of a buckle or a quick-release mechanism that can be tightened or loosened as needed.

 

Open heel fins are designed to be worn with neoprene dive boots or socks, providing insulation, protection, and added comfort. The fin's foot pocket is usually larger and more accommodating to accommodate the boot or sock. This design allows divers to have a secure fit and prevents the fins from slipping off during underwater activities.

 

One of the advantages of open heel fins is their versatility. Divers can easily adjust the strap tension to achieve a snug fit, and they can share the fins with others by adjusting the strap accordingly. Additionally, the ability to wear dive boots with these fins provides thermal protection and prevents blisters or chafing that can occur when using full-foot fins.

 

It's worth noting that open heel fins are typically more expensive than full-foot fins due to their adjustable strap mechanism and the need for separate dive boots. However, they are a popular choice among divers who prioritize comfort, versatility, and the ability to adapt to different water conditions.

 

When choosing open heel fins, it's important to consider factors such as fin blade design, material, stiffness, and size. These factors can affect the fin's performance, maneuverability, and efficiency in the water. It's recommended to try on different models and consult with experienced divers or dive professionals to find the right pair of open heel fins for your specific needs and preferences.