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U.S. DARKWATER LLC
DRYSUIT DIVING SERVICES

U.S. DARKWATER LLC DRYSUIT DIVING SERVICESU.S. DARKWATER LLC DRYSUIT DIVING SERVICESU.S. DARKWATER LLC DRYSUIT DIVING SERVICES
Home
Menu
  • Drysuit Services/Repairs
  • Full Face Masks
  • Drysuits - Public Safety
  • Drysuits - Military
  • Drysuits - Commercial
  • Drysuits - Tec/Rec
  • Drysuits - Water Rescue
  • Drysuits - Ice Rescue
  • Drysuit Undergarments
  • Cylinders
  • BCDs
  • BCD Accessories
  • Tank Accessories
  • Backplates
  • Harnesses
  • Masks/Snorkels/Fins
  • Dive Lights
  • Regulators & accessories
  • Si Tech
  • Underwater Communications
  • Viking Accessories
  • Catalog
  • Other Products
  • Training
  • About Us
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More
  • Home
  • Menu
    • Drysuit Services/Repairs
    • Full Face Masks
    • Drysuits - Public Safety
    • Drysuits - Military
    • Drysuits - Commercial
    • Drysuits - Tec/Rec
    • Drysuits - Water Rescue
    • Drysuits - Ice Rescue
    • Drysuit Undergarments
    • Cylinders
    • BCDs
    • BCD Accessories
    • Tank Accessories
    • Backplates
    • Harnesses
    • Masks/Snorkels/Fins
    • Dive Lights
    • Regulators & accessories
    • Si Tech
    • Underwater Communications
    • Viking Accessories
    • Catalog
    • Other Products
    • Training
    • About Us
  • Gallery

U.S. DARKWATER LLC
DRYSUIT DIVING SERVICES

U.S. DARKWATER LLC DRYSUIT DIVING SERVICESU.S. DARKWATER LLC DRYSUIT DIVING SERVICESU.S. DARKWATER LLC DRYSUIT DIVING SERVICES
  • Home
  • Menu
    • Drysuit Services/Repairs
    • Full Face Masks
    • Drysuits - Public Safety
    • Drysuits - Military
    • Drysuits - Commercial
    • Drysuits - Tec/Rec
    • Drysuits - Water Rescue
    • Drysuits - Ice Rescue
    • Drysuit Undergarments
    • Cylinders
    • BCDs
    • BCD Accessories
    • Tank Accessories
    • Backplates
    • Harnesses
    • Masks/Snorkels/Fins
    • Dive Lights
    • Regulators & accessories
    • Si Tech
    • Underwater Communications
    • Viking Accessories
    • Catalog
    • Other Products
    • Training
    • About Us
  • Gallery

MASKS/SNORKELS/FINS

POSEIDON MASKS

This ultra-low volume, matte mask incorporates a unique, lightweight frameless design and a single lens with a slight downwards angle to provide an unprecedented field of vision combined with great comfort for most face types. The extra deep and ultra-soft skirt provides a comfortable and flood resistant fit, which even works great with beards. Poseidon’s LVSL© technology gives you the best of both worlds with easy-to-clear low volume and a single lens in one frameless package.

Poseidon Black Line Mask

Weight (g): 185

Material: Tempered Glass, Silicone, Rubber

EAN: 7340193700053

KEY PERFORMANCE FEATURES

  • Ultra Clear lens
  • LVSL© Low-Volyme Single-Lens technology
  • Tilted lens
  • Frameless
  • 120 mm / 4.75" skirt width
  • 150 mm / 5.9" lens width
  • Includes mask hard case 

Poseidon White Line Mask

Weight (g): 185

Material: Tempered Glass, Silicone, Rubber

EAN: 7340193700053

KEY PERFORMANCE FEATURES

  • Ultra Clear lens
  • LVSL© Low-Volyme Single-Lens technology
  • Tilted lens
  • Frameless
  • 120 mm / 4.75" skirt width
  • 150 mm / 5.9" lens width
  • Includes mask hard case

Poseidon Red Line Mask

Weight (g): 185

Material: Tempered Glass, Silicone, Rubber

EAN: 7340193700053

KEY PERFORMANCE FEATURES

  • Ultra Clear lens
  • LVSL© Low-Volyme Single-Lens technology
  • Tilted lens
  • Frameless
  • 120 mm / 4.75" skirt width
  • 150 mm / 5.9" lens width
  • Includes mask hard case

Poseidon Technica Mask

The Technica Mask was inspired by free-divers who need the minimum gas requirement to clear their mask. Its rugged looks will distinguish from the crowd and perform flawlessly. Dive after dive. The Technica Mask is one of our most narrow masks, making it our best mask for young divers and overall, a great fit for most divers. 

 

  • Low volume
  • 120 mm / 4.75" skirt width
  • 145 mm / 5.7" lens width
  • Double lens
  • Includes mask case 


FOURTH ELEMENT MASKS

With the iconic square profile shape favored by many military and professional divers this mask has been developed to Military Specification. Metal parts (springs and pins) have been replaced so that the mask has no magnetic signature. High clarity tempered glass provides excellent light transmission and the compact design enables easy stowing in pockets. Available in Black and Green skirt colors.

Fourth Element Frogman Mask (Green)

  

  • Ultra clear lens
  • Single lens frameless mask
  • Angled profile to maximise field of view
  • Soft silicone skirt for optimised comfort fit
  • Silicone strap
  • Mag free

Fourth Element Frogman Mask (Black)

  

  • Ultra clear lens
  • Single lens frameless mask
  • Angled profile to maximise field of view
  • Soft silicone skirt for optimised comfort fit
  • Silicone strap
  • Mag free

POSEIDON SNORKELS

Lightweight. Foldable. Functional. This lightweight snorkel with wraparound design for streamlined swimming is great for snorkeling, free diving and scuba. The foldable design is ideal for easy storage in any accessory pocket and perfect for travel. The perfect companion for any mask. Weight (g): 110 Material: Silicone mouthpiece with TPR tube

Poseidon Black Line Snorkel

Poseidon White Line Snorkel

Poseidon Red Line Snorkel

FOURTH ELEMENT SNORKEL

Fourth Element Stowable Snorkel

 Available in black and green

NORTHERN DIVER SNORKEL

Northern Diver Black J Type Snorkel

A simple all-black snorkel with no valve.

Ideal for use in fast flowing waters and seas with high salt content.

XS SCUBA FINS

XS Scuba Turtle Fins

  •  A classic favorite
  • 3XL size popular among drysuit divers because of the very large foot pocket
  • Compression molded, rubber construction
  • Provides exceptional speed with minimal effort
  • Available with Highland Spring Straps pre-installed

POSEIDON TRIDENT FINS

The Poseidon Trident fin has been designed shorter than most fins on the market. This allows for extra room in tight environments and makes for a smaller and lighter fin to travel with, while not sacrificing thrust power with each kick. The edge of the fin is heightened for added maneuverability and the fin comes with a stainless steel spring strap for easy donning and doffing. Highly popular among technical divers. The Trident fin will improve your underwater experience.

Poseidon Trident Fin (Black)

 

  • Short rubber fin
  • Easy on and off
  • Stainless steel strap with easy grip
  • High force fin with edges for maneuverability

Available in sizes M, L, XL and XXL

Poseidon Trident Fin (Red)

 

  • Short rubber fin
  • Easy on and off
  • Stainless steel strap with easy grip
  • High force fin with edges for maneuverability

Available in sizes M, L, XL and XXL

FOURTH ELEMENT TECH FINS

This natural rubber fin delivers a comfortable foot pocket combined with optimised stiffness for finning performance. The vented design allows water to flow along the blade reducing drag and fatigue, whilst the stiffening rails and ribs ensure that the blade of the fin is driven through the water to maximise the return on effort. The Tech Fins are supplied with a hanging/carrying strap which may be used to attach them to a BCD or harness.

Fourth Element Tech Fins (Grey)

  

  • Natural rubber heel strap
  • Soft foot pocket
  • Hydro-flow vents
  • Turbulence disruptors
  • Strengthening ribs
  • Stiffening lateral rails
  • Mag free

Fourth Element Tech Fins (Black)

  

  • Natural rubber heel strap
  • Soft foot pocket
  • Hydro-flow vents
  • Turbulence disruptors
  • Strengthening ribs
  • Stiffening lateral rails
  • Mag free

NORTHERN DIVER FINS

Northern Diver Bio Ranger Fin

  • Manufactured from 100% natural rubber (negatively buoyant)
  • Dynamic split blade technology – reduces fatigue
  • Stainless steel spring straps
  • Comfortable foot pocket with anti-slip high traction sole
  • Low magnetic permeability for EOD
  • Boot size: M/L, L/XL

Northern Diver Omega Flip Fin

These unique fins give an uncomplicated transition from walking to swimming, the flip fins are ultra light weight and are designed to withstand the toughest of operational conditions. For walking use, the fins feature a comfortable curved pocket sole, with a raised slip resistant thread design to avoid the risk of slipping.  

Northern Diver Bio Fin

 

  • 20 degree angle of blade ensures that the fin works with the natural resting angles of ankle and knee
  • Split fin design allows for more power and less effort than any other fin
  • Increased maximum speed and reduced fatigue
  • Consistently rated as the fastest fin in the water
  • Easy quick release buckle system with finger loop 

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U.S. Darkwater will close at 3:00 p.m. on Friday, May 30, 2025.  We will reopen on Monday June 2, 2025 at 9:00 a.m.