Powerfin Pro II Unisex Silicone Short Blade Fins - Sizes 4.5-13.5

In this review we look at the Powerfin Pro II unisex silicone training fins, a focused tool for competitive swimmers who want to improve leg drive and the underwater phase. The bottom line: these are training fins built for repeated, high-intensity sets - their short blade, hydrodynamic slits and left-right shaping combine to produce faster leg kicks and improved control without sacrificing ankle flexibility. Swimmers who want a durable, PVC-free option that reduces blister risk will find these fins worth testing in the pool.

Key Features

• Short blade design: delivers maximum forward thrust for powerful, focused kick sets that emphasize propulsion rather than long blade timing.
• Hydrodynamic slits: the sloping surface with slits improves water flow so swimmers can achieve a quicker leg kick with better control.
• Left-right customization: individually shaped left and right fins ensure a more natural fit and consistent kick symmetry during training.
• Open heel and ankle flexibility: the open heel profile allows a faster upward motion and stronger downward kick for a more effective underwater phase.
• Silicone, PVC-free material: long-life silicone construction increases comfort, reduces blister risk and holds up to intensive training sessions.
• Bottom ribs and side grooves: special notches and grooves add control and faster kick response when doing sprint or vertical kicking drills.

Who It's For

The Powerfin Pro II is aimed at professional and competitive swimmers, triathletes and swim coaches who need a training fin that supports short, intense leg work and underwater kicks. It is especially useful for athletes focusing on sprint starts, dolphin kicks and vertical kicking to build explosive leg power.

Swimmers who prefer soft, full-foot recreational fins or who need a very forgiving fit for casual snorkeling should look elsewhere; a few users report a snug fit on top of the foot and some variation in perceived comfort, so those with highly sensitive feet may want to try them on before committing.

Pros & Cons

Pros

• Durable silicone construction feels comfortable for extended training and reduces blistering compared with stiffer materials.
• Short blade and hydrodynamic slits produce a faster leg kick and more controllable propulsion for underwater sets.
• Left-right customized shaping and open heel design improve symmetry and ankle range of motion.
• Side grooves and bottom notches enhance control and faster kick response during sprints.

Cons

• Some swimmers report rubbing on the top of the foot or a very snug fit; sizing should be checked against the chart.
• Perceived weight and price may be a drawback for swimmers seeking the lightest or lowest-cost training fin.

Specifications

Product type	Training fins / kick fins
Material	Long-life silicone, PVC free
Blade length	Short blade for maximum forward thrust
Fit	Open heel with left and right customization
Design features	Hydrodynamic slits, side grooves, bottom notches
Intended use	Professional and competitive swim training
Sizes	Men and women sizes 4.5-13.5 (refer to size chart)

Our Verdict

The Powerfin Pro II is a focused training fin for swimmers serious about improving leg speed, propulsion and the underwater phase. Its silicone build, left-right shaping and hydrodynamic features make it a durable, high-performance choice for competitive training; however, prospective buyers should verify sizing because fit can feel snug for some feet. For athletes who want faster kicks and better control, these fins are good value as a long-term training tool.

Frequently Asked Questions

Are these fins suitable for competitive starts and dolphin kicking?
Yes, the short blade and slits are designed to improve leg speed and control, making them suitable for starts and underwater dolphin-kick work.

Will these cause blisters after long sets?
The silicone, PVC-free material is softer and reduces the chance of blisters compared with stiffer fins, but fit matters-check the size chart and try them first if possible.

Do they come in left and right specific shapes?
Yes, the fins are customized for left and right feet to improve symmetry and comfort during repeated kicks.