The ever-popular Voit UDT Duck Feet are back - extreme propulsion fins, the most highly acclaimed and coveted fin since its inception. Improved performance, appreciated by all, from SEALS to surfers. Order actual shoe size for use with bare feet or fin sock. Consider ordering one size larger if you intend to wear booties.

UDT Duck Feet fins are used at Basic Underwater Demolition / SEAL Training

The most highly acclaimed and coveted swim fin since its inception is back. The molds have been returned to American soil and the VOIT UDT Duck Feet are now made in the USA by people who understand not only fin design and function, but by people who value the responsibility of inheriting, improving, protecting, and perpetuating the tradition of greatness that this product is known for. UDT Duck Feet always have been strongly preferred by U.S. Navy SEALs, big wave bodysurfers, kneeboarders, scuba divers, skin divers and professionals in the lifesaving community, and with their re-release have quickly become the most sought-after swim fin to be included in the water athletes product arsenal.

Features:

• New rubber durometer values and loading patterns result in a fin with a plethora of advantages and enhanced attributes
• Twisting action of the fin "releases" water by loading one side of the fin. The resulting lateral force component increases maneuverability and stability, as seen in aquatic organisms
• Foot pocket and blade made of similar material, yet the outer ribs are relatively rigid. This guarantees an inflection point distally removed from the foot. The result is that all of your power gets transferred to this distal inflection point, creating more forward thrust than conventionally stiff fins of the past.

   

Please note: These fins are designed for bare feet, and the sizes are based on bare feet. If you plan on wearing a bootie, add a couple sizes to your normal size when selecting the appropriate fin size.

Sizes: (bare feet)

• Large 9-11
• X-Large 11-13
• XX-Large 13+

FIN Sizing Chart

UDT Duck Feet Fin

Please note: These fin sizes are based on bare feet. If wearing dive booties, such as the Echo Zip Bootie, we recommend the size XXL fins. If you wear a size 12 or larger, we do not recommend wearing booties. We do not recommend molded sole boots such as the Manta Boot for these fins.

Footwear Sizing Chart

*Please Note: This chart is for your convenience only, and is not as accurate as a foot measuring device. If you already know your shoe size, do not use this chart.

Boot Fit Tips

1. Desert, Jungle & Combat Boots Are Slightly Larger In Fit Than Your Normal Size
2. Tactical Boots Fit Very Close To Civilian Street Sizes (IE, 9C, or 9R)

    

How to Measure Your Foot
(Use this chart only if you do not know your shoe size)

1. Place a ruler flat on the floor
2. Line up your heel at the edge of the ruler
3. Measure from your heel to your big toe
4. Use chart below to calculate your size