vented rubber fins

The Apeks RK3 is a rugged thermoplastic rubber fin featuring an over-sized foot pocket to accommodate drysuit boots and a spring strap for easy donning and doffing. The RK3 is available in four sizes: Small, Medium, Large and Super. We didn't give the RK3 fin a shoe size range as this can be very misleading. The environment that an RK3 is used in will tend to dictate the size of fin that you need, for example do you dive in a warm environment wearing wetsuit boots, or are you walking across pebbled beaches and wearing a drysuit and rigid dry boots? Both forms of footwear may be a size 9, but will take up different amounts of space in the fin foot pocket.

FN-500S

This model JetFins has 3 main channels to push water backwards to assist with efficiency and power. The best quality rubber makes this fin ultra durable and long lasting.

Some plastic fins are positively buoyant, so when you’re in proper position which should be 10 degrees midline of horizontal, they can bring your feet up too high and keep reaching for the sky so to speak, bringing you inverted and to the point where if you don’t correct it to a point where  you turtle flipping and rolling.

A little bit of weight from the fin, not in the form of ankle weights (which will bring you legs down too low) may keep your feet in the perfect position.