Open-Heel vs. Full-Foot Fins: What’s the Difference?

With the right kit, diving and snorkeling can be incredible, but with the wrong gear, a dive can quickly turn into an uncomfortable, or even dangerous experience. So it’s extremely important to set out with the right equipment for your level of skill and the conditions you’ll be jumping into. 

In the case of fins, there are two common designs available: open-heeled fins and full-foot fins. Both are optimal for specific situational conditions and will perform best when deployed in those contexts.

Full-foot fins—such as our Full Foot Splitfin—excel in warmer waters where going barefoot is more comfortable. A good, tight fit is important with full-foot fins to maximize performance. You’ll also want to keep beach and rock walking to a minimum as they provide less protection to your footbed. 

Similar to how you might think of a shoe for rock climbing, a full-foot fin should fit snuggly and as a trade-off offers more sensitivity and performance. A perfectly fitting fin offers unparalleled comfort and thrust in situations where warm, temperate waters are your playground. However, the same snug feeling can quickly transition to blood restriction and discomfort if water temps fall past a certain level. 

On the opposite side of the coin, open-heel fins like our Bladefin are better for colder aquatic environments because they support the use of booties and other insulating layers. Booties can also be used to help protect the foot against abrasion, making open-heel fins a better choice if you’re likely to be walking on rocky or uneven surfaces.  

Long approaches, tricky shore dives and all manner of cold-water diving will likely require you to have a pair of booties insulating and protecting your feet. There are few conditions more uncomfortable than lacerating your foot on an unexpected rock or struggling to maintain comfort when your gear doesn’t match the water temperature, so do yourself a solid and plan accordingly based on the context of your excursion.      

So, if you’re diving from a boat in the tropics, perhaps full-foot fins are the right choice. But if you spend most days navigating rocky shores and frigid waters, invest in a pair of neoprene booties and open-heel fins for best results.