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Drysuit Undergarments

Drysuit undergarments (or undersuits) are worn beneath the dry suit to provide much of the actual insulation for the scuba diver and have a large impact on the enjoyment of a dive.

Undersuits are used for providing additional warmth when diving, traditionally under a drysuit but some are now ideal for use under a wetsuit as well. Undergarments are available in a wide range of styles, thickness grades and materials, spanning from the thinnest (e.g. Northern Diver Thermalskin) up to the much thicker and more thermally insulating (e.g. Northern Diver Metalux Arctic).

For cold-water use, especially diving under ice sheets, the user will usually wear a thick undersuit in a membrane drysuit. The thickness of undersuits varies and can be chosen by the wearer according to the water temperature. Thinsulate or Fleece (e.g. Northern Diver Arctic Base) is one of the preferred fabrics for undersuits. More recently, aerogel material is being added to conventional undergarments to increase the insulating properties of those garments.

Neoprene drysuits are made from a foam-rubber sheet containing tiny air bubbles, which provide insulation by themselves, and can eliminate the need for an undersuit, or greatly reduce the thickness needed for the under fabric. A neoprene wetsuit can also be worn under a membrane drysuit for extra protection against condensation and leaks.



Product Image Item Name Price+
Northern Diver Internal Drysuit Braces

Northern Diver Internal Drysuit Braces

The Northern Diver Internal Drysuit Braces come in handy post dive when you want to roll down the top half of your drysuit without removing the whole...
$27.00  $22.00
Save: $5.00 (19%)


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Sonar Lycra Rash Vest - Long Sleeve

Sonar Lycra Rash Vest - Long Sleeve

Rated to UV50+ these Sonar Lycra Long Sleeve Rash Vests block out the suns harmful rays to provide excellent overall protection from the sun, coral...
$45.00  $25.00
Save: $20.00 (44%)


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Fourth Element Xerotherm 2001-2017 Drysuit Socks - Unisex

Fourth Element Xerotherm 2001-2017 Drysuit Socks - Unisex

The Fourth Element Xerotherm Drysuit Socks are a perfect complement to the Xerotherm undersuit range, providing excellent thermal protection and...
$29.50  $28.00
Save: $1.50 (5%)


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Sharkskin Chillproof Beanie

Sharkskin Chillproof Beanie

The Sharkskin Chill-Proof Beanie is made from 100% Chillproof material, this beanie provides the ultimate in exposure protection with a 'micro...
$33.00  $30.00
Save: $3.00 (9%)


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Fourth Element Xerotherm 2001-2017 Beanie Hat - Unisex

Fourth Element Xerotherm 2001-2017 Beanie Hat - Unisex

The Fourth Element Xerotherm Beanie Hat helps to reduce heat loss through the head. It is warm even when wet, which is perfect for pre and post dive...
$39.95  $38.00
Save: $1.95 (5%)


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Northern Diver Hot Sox (formerly Warm Socks)

Northern Diver Hot Sox (formerly Warm Socks)

The Northern Diver Hot Sox (formerly called Warm Socks) are the ultimate cold killers for you feet. They are made from wicking fleece material, which...
$49.00  $40.00
Save: $9.00 (18%)


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Sonar Lycra Body Suits

Sonar Lycra Body Suits

Rated to UV50+ these Sonar Lycra Bodysuits block out the suns harmful rays to provide excellent overall protection from the sun, coral and aquatic...
$79.00  $40.00
Save: $39.00 (49%)


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Fourth Element Xerotherm Wrist Warmers

Fourth Element Xerotherm Wrist Warmers

The Fourth Element Xerotherm Wrist Warmer is designed to be used with drygloves, and bridges the gap between a diver's undersuit and dry glove liner....
$43.00  $41.00
Save: $2.00 (5%)


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Fourth Element Arctic Drysuit Socks - Unisex

Fourth Element Arctic Drysuit Socks - Unisex

The Fourth Element Arctic Drysuit Socks complete the Arctic drysuit undersuit thermal protection system with a two layer construction that offers...
$48.50  $46.00
Save: $2.50 (5%)


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Fourth Element Hotfoot Drysuit Socks - Unisex

Fourth Element Hotfoot Drysuit Socks - Unisex

Fourth Element Hotfoot Drysuit Socks provide high insulation due to double layer of state-of-the-art materials, ensuring that the feet are more...
$62.00  $59.00
Save: $3.00 (5%)


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New Products For June - Suits / Drysuits

Waterproof Dry Socks - 1.5mm

Waterproof Dry Socks - 1.5mm
$152.00  $137.00
Save: $15.00 (10%)

Featured Products - Suits / Drysuits

Sharkskin Chillproof Long Sleeve Top - Mens

Sharkskin Chillproof Long Sleeve Top - Mens
$195.00  $175.00
Save: $20.00 (10%)
Sharkskin Chillproof Long Sleeve Top - Womens

Sharkskin Chillproof Long Sleeve Top - Womens
$195.00  $175.00
Save: $20.00 (10%)

Monthly Specials For June

Sharkskin Chillproof One Piece Undergarment - Womens

Sharkskin Chillproof One Piece Undergarment - Womens
$305.00  $275.00
Save: $30.00 (10%)
Fourth Element Arctic Drysuit Socks - Unisex

Fourth Element Arctic Drysuit Socks - Unisex
$48.50  $46.00
Save: $2.50 (5%)
Fourth Element Hotfoot Drysuit Socks - Unisex

Fourth Element Hotfoot Drysuit Socks - Unisex
$62.00  $59.00
Save: $3.00 (5%)

Sharkskin Chillproof One Piece Suit - Womens

Sharkskin Chillproof One Piece Suit - Womens
$355.00  $319.00
Save: $36.00 (10%)
Sharkskin Chillproof One Piece Suit - Mens

Sharkskin Chillproof One Piece Suit - Mens
$355.00  $319.00
Save: $36.00 (10%)

Fourth Element Xerotherm Wrist Warmers

Fourth Element Xerotherm Wrist Warmers
$43.00  $41.00
Save: $2.00 (5%)
Fourth Element Hotfoot Pro Drysuit Socks - Unisex

Fourth Element Hotfoot Pro Drysuit Socks - Unisex
$92.00  $88.00
Save: $4.00 (4%)
Sharkskin Chillproof One Piece Undergarment - Mens

Sharkskin Chillproof One Piece Undergarment - Mens
$305.00  $275.00
Save: $30.00 (10%)

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