| Size | USA (in) | EU (cm) |
|---|---|---|
| Small | 5 1/2 | 37-38 |
| Medium | 6 – 8 1/2 | 39-41 |
| Large | 9 – 11 | 42-43 |
| XLarge | 11 1/2 – 13 | 44-46 |
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Product Information
Atomic Aquatics X1 BladeFin fins are designed for scuba diving, delivering strong thrust with precise control in the water. The firmer, shorter blade and a solid internal frame attach to power plate foot pockets, improving maneuverability in tight spaces and supporting a range of diving styles.
Designed for underwater propulsion, these fins balance stiffness and efficiency. The X1 features rigid low-profile side rails and a shorter, stiffer blade to reduce drag and improve pivoting during dives, while the taller foot pocket and low-friction entry accommodate large boots and drysuit footwear.
- ATOMIC FIN PATENTED EXCLUSIVES EZ-LOK BUCKLE SYSTEM enables quick, secure one-handed buckling with 180-degree rotation; rust-resistant stainless steel patent-backed spring heel straps retrofit across Atomic fins and many other brands.
- X1 BLADEFIN DESIGN Power, thrust, and control for general diving and alternative kicking styles in scuba diving; the taller foot pocket with a low-friction entry suits large boots and drysuit footwear.
- RIGID LOW-PROFILE SIDE RAILS & SHORTER, STIFFER BLADE Reduces drag and side-to-side resistance, enhancing pivoting and turning during underwater propulsion in diving scenarios.
- MONOCOQUE STRUCTURE & POWER PLATE A unified construction transfers power efficiently from leg to rails for effective propulsion in underwater environments.
- ASYMMETRICAL BLADE BEND FLEXING Supports alternate kicking styles such as scissor kicks, frog kicks, and helicopter turns for better feel and control in tight circles.
- VERTICAL STABILIZERS OR STRAKES Add stability and reduce drag to keep tracking straight, avoiding the drag associated with taller side rails during diving.
- EZ-LOK BUCKLE SYSTEM Patented quick-release buckle design allows simple one-handed release and secure reattachment for diving gear safety.
- VARIABLE GEOMETRY SPRING HEEL STRAPS Rust-resistant stainless steel springs with adjustable geometry for easy donning and durable performance; available as a universal retrofit for many brands.
- WARRANTY & CARE One-year warranty against defects; store away from direct sunlight and keep pocket inserts in place to prevent deformation in dive gear.
⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Frequently Asked Questions
What is the difference between open-heel and full-foot fins?
Open-heel fins have an adjustable heel strap and are worn with dive boots, which protect your feet on shore entries and add warmth. Full-foot fins slip on like a shoe against bare skin or a thin sock, and are typically lighter and easier to pack. Most scuba divers choose open-heel fins with boots, while full-foot fins suit warm water, snorkeling, and pool use.
How should scuba fins fit?
Open-heel fins should be sized around the boots you will actually wear, snug with the strap set so your heel stays seated and your foot does not slide forward in the pocket. Full-foot fins should fit like a firm shoe, with no heel lift, no pinched toes, and no gap that lets water pump in and out. Too loose causes heel blisters and lost fins in current, and too tight causes foot cramps.
Should I buy dive boots before fins?
Choose your boots first and size open-heel fins around them, because sole thickness changes the foot-pocket size you need. A thin warm-water boot and a thick cold-water boot with a rugged sole can easily be a fin size apart. If you already own fins, bring them along when you buy boots so you can check the combination.
Are spring straps worth it?
Spring straps replace the adjustable rubber strap with a stainless spring that stretches on and off, so there is nothing to buckle with cold or gloved hands and no rubber strap to perish and snap mid-dive. They hold constant tension, which many divers find more comfortable and consistent. They are sized rather than adjustable, so match the length to your foot pocket and the boots you dive.
What are the best fins for travel?
For travel, length and weight matter most, so shorter blades and travel-specific open-heel or full-foot models pack more easily and save baggage allowance. Some fins have removable blades or compact foot pockets designed for luggage. Pack fins along the outside walls of your bag, where they also act as protection for softer gear.
What is the difference between paddle and split fins?
Paddle fins use a solid blade that transfers power directly, which many divers prefer for precision, control in current, and non-flutter kicks such as the frog kick. Split fins have a slit down the blade that lets water pass through, which generally makes flutter kicking easier on the legs but gives up some control and works less well with other kick styles. Neither is inherently better, so let your kick style, leg strength, and conditions decide, and try both if you get the chance.
How do I care for dive fins?
Rinse them in fresh water after each dive day, paying attention to buckles, springs, and strap channels where salt collects, and dry them out of direct sunlight. Store them flat or hanging from the foot pocket rather than standing on the blade tips, which can take a permanent bend. Check straps, buckles, and any screws before every trip, since a failed buckle is the most common fin problem.
