Poseidon Trident Fins w/Spring Straps

In Stock
A classic design from Poseidon. Trident Fins are ideal for those who prefer a durable rigid rubber fin.

Poseidon Trident Fins w/Spring Straps

Color Options
Color Options Poseidon Trident Fins w/Spring Straps
  • Classic 100% Rubber design for technical diving
  • Stainless steel spring strap with easy grip
  • Compact length for convenience and portability
  • Dynamic edge for precise movements and maximum propulsion

A classic design from Poseidon. The Trident Fin is ideal for those who prefer a durable rigid rubber fin. Featuring heavy-duty all rubber construction, they provide performance power along with maneuverability and reliable durability for years of service. The Trident fin design uses a pronounced "edge" on the side of the fin blade that assists with precise turns and movement.

Designed for experienced technical divers, the fins include a stainless steel heel strap with a rubber "Easy Grip" sheath that makes use simple even with heavy gloves on. The Trident fins are notably one of the shortest fins in its technical diving class making it easier to pack and transport while still providing the propulsion you need for doubles or CCR diving. Available in Black or Red color.

Although these fins look very similar to other brands, there is no size standardization between brands of fins and you cannot assume the size of the foot pocket in another brand of fin is the same dimensions as Trident Fins.

Fin Foot Pocket Dimensions

Fin Size Length
(Toe to Top)
US Size
US Size
Medium {8.25 in | 21.0 cm} {3.5 in | 8.9 cm} {3 in | 7.6 cm} Up to 6 Up to 7
Large {8.5 in | 21.6 cm} {3.5 in | 8.9 cm} {3.25 in | 8.3 cm} 7 - 9 8 - 10
X-Large {9 in | 22.9 cm} {4 in | 10.2 cm} {3.5 in | 8.9 cm } 10 - 12 11 - 13
XX Large {9.25 in | 23.5 cm} {4.25 in | 10.8 cm} {3.5 in | 8.9 cm} 13 and Up 14 and Up

NOTICE: Dive Gear Express always ships unused new fins, but all fin materials have some characteristics that upon close inspection can make new fins appear aged or used. By design, all fin materials are soft regardless of brand, so handing during manufacturing and shipping through various points of the supply chain will inevitably cause the appearance of some minor cosmetic scuffs. Some fin materials, especially rubber, also contain a mold release agent that exhibits a gradual "blooming" of a haze on the surface of the fin as it dries following manufacturing, giving the appearance of oxidation and aging. If the cosmetics are bothersome then they can be improved by scrubbing the surface with ordinary soap, water and a cloth.

More Information
Brand Poseidon
SKU PDS-0710xx
Weight 8.000000

What Size Fins Do I Need?

Unlike shoes, the question is difficult to answer with fins because a 'shoe' size is only part of the answer. The brand and type of neoprene bootie you wear, particularly if you wear heavy soled or rock boots, will have as much effect on the selection of fin foot pocket as the shoe size. Some people, especially those with high arches, prefer a loose fit in their fin and others prefer a snug fit. Fitting drysuit boots in the very large sizes is especially problematic.

There is no size standardization between brands of fins (or even between different models from the same brand) and so you cannot assume that a size in one brand of fin is the same dimensions as the size in another brand; even when the designs look very similar. Taking some actual measurements of your boot while on your foot and comparing to our foot pocket dimension charts will help determine the size selection for your desired fit.

Determine your correct size before you order! If you are not certain about your fin size then our recommendation is not to order until you can obtain that information. While Dive Gear Express will accept fins for return, fins do not qualify for a free prepaid return label. You will be responsible for return shipping costs. Return shipping costs on fins can be expensive (especially from an International location) because fins are a relatively low priced item that has a high 'dimensional weight'. Your complete satisfaction is our goal, so please consider carefully before purchase.

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