The deep sea diving suit is one of the most important pieces of equipment. It keeps the body warm, protects it from physical hazards, and even increases the body's buoyancy. Often, it is the difference between life and death.  

In this article, we go over 10 popular suits on the market, covering each of their strengths and weaknesses. We aim to leave you with a comprehensive understanding of each of these products so you can pick the best one for your next diving adventure.


Product FAQ

1. What is a Deep Sea Diving Suit?

deep sea diving suit: what is a diving suit

A deep sea diving suit is a garment typically worn during water activities like surfing, diving, windsurfing, canoeing, waterskiing, and others. Deep sea diving suits are normally made by a material called neoprene. Neoprene is a synthetic rubber made from the polymerization of chloroprene. It is known for maintaining chemical stability and flexibility over a wide range of temperatures.

​What Makes Them Useful?

​How Heavy Are They?

2. What Are the Different Types of Deep Sea Diving Suits?

deep sea diving suit: What Are the Different Types of Diving Suits?

​There are three main types of diving suits: the wetsuit, the semi-dry suit, and the drysuit.

​Wetsuits

​Semi-Dry

​Dry Suit

3. What Are Benefits of Wearing a Deep Sea Diving Suit?

deep sea diving suit: What is Scuba Diving

You might be wondering if you can save yourself a bit of cash and just go diving in your regular swimwear. The answer is a resounding "no."

The first benefit of wearing one is thermal insulation. Wearing a deep sea diving suit will keep you warm and prevent you from getting hypothermia. Do not make the mistake of assuming hypothermia is a worst-case scenario you only need to worry about during deep dives into cold waters. Even if the water is in the high 80's, your core body temperature can drop, preventing a major health risk.

The second benefit is physical protection. When you are underwater, the temperature is just one danger to contend with. You may also encounter physical hazards, like sharp rocks, coral, jellyfish debris, and more. Wearing a suit will provide an essential layer of protection.

The third benefit is increased buoyancy. As mentioned above, these suits are designed to hold tiny air bubbles within their material. These bubbles decrease their density, making it easier for you to float.

4. What Is Hypothermia?

Deep Sea Diving Suit: What Is Hypothermia?

​​​Hypothermia is a very real threat to every diver. It is a medical emergency during which your body loses heat faster than it can create it. The ideal body temperature is around 98.6 degrees Fahrenheit, or 37 degrees Celsius. Hypothermia occurs when your body temperature drops below 95 degrees Fahrenheit, or 35 degrees Celsius.

Hypothermia prevents your heart, nervous system, and other essential organs from working properly. It can eventually cause death by shutting down your heart and respiratory system. When you are immersed in cold water, you are particularly vulnerable to hypothermia. Symptoms of hypothermia Include:

  • ​Shivering
  • ​Slurred speech
  • ​Weak pulse
  • ​Decreased coordination
  • ​Shallow breathing
  • ​Energy loss
  • ​Confusion
  • ​Loss of consciousness

​The danger of hypothermia is that once you begin experiencing symptoms, it becomes incredibly difficult to notice them, as they come on very gradually. That is why you should always dive in groups. If you or someone you know experiences hypothermia, you should immediately take steps to remove yourself or your colleague from the water and raise the body temperature back to normal.

5. Where Can You Buy a Deep Sea Diving Suit?

deep sea diving suit: Where Can You Buy a Diving Suit?

​You can find one in many sporting goods stores, especially outdoor sporting goods stores. Of course, you can also buy one from one of the many stores dedicated to selling diving gear. These stores are particularly easy to find near the beach. Like most things, suits are also highly available online on sites like Amazon.

​How We Reviewed

deep sea diving suit: person looking at a laptop

The following products were reviewed based on the following parameters features, pros & cons, Price, where to buy, and warranty. We chose these parameters in order to cover the most important aspects of each product.

 

Overall Price Range of This Product (and Similar Products)

Deep sea diving suit models ranges vary. The main price determinants include materials, technologies used, brand name, and design quality.

 

What We Reviewed

  • ​ScubaPro Men's Everflex Steamer
  • ​Henderson Men's Thermoprene Long Sleeve Front Zipper
  • ​Mares Mens Flexa
  • ​Hyperflex Women's Cyclone2
  • ​NeoSport Men's Shorty 3 MM Wetsuit
  • ​Bare 5mm Velocity Full Suit Super
  • ​XCEL 7/6mm Thermoflex Ultrastretch Men's Full Scuba Diving Wetsuit
  • ​US Divers 3/2mm Men's Jumpsuit
  • ​Aqua Lung HydroFlex 3mm Women's Wetsuit
  • ​O'Neill Men's Epic 4/3mm Back Zip Full Wetsuit

​Product

​Price

​Where to Buy

ScubaPro Men's Everflex Steamer

ScubaPro Men's Everflex Steamer

$$$

Henderson Men's Thermoprene Long Sleeve Front Zipper
Henderson Men's Thermoprene Long Sleeve Front Zipper

$

Mares Mens Flexa
Mares Mens Flexa

$$

Hyperflex Women's Cyclone2
Hyperflex Women's Cyclone2

$

NeoSport Men's Shorty 3 MM Wetsuit
NeoSport Men's Shorty 3 MM Wetsuit

$

Bare 5mm Velocity Full Suit Super
Bare 5mm Velocity Full Suit Super

$$

XCEL 7/6mm Thermoflex Ultrastretch Men's Full Scuba Diving Wetsuit

$$$

US Divers 3/2mm Men's Jumpsuit

$

Aqua Lung HydroFlex 3mm Women's Wetsuit
Aqua Lung HydroFlex 3mm Women's Wetsuit

$$

ScubaPro Men's Everflex Steamer
O'Neill Men's Epic 4/3mm Back Zip Full Wetsuit

$


ScubaPro Men's Everflex Steamer

ScubaPro Men's Everflex Steamer

Features 

The Everflex Steamer is made from 100% Everflex neoprene. It has been constructed with solvent-free water-based glue, making it environmentally friendly. It features the Pure Design Concept, minimizing the number of seams and panels for increased flexibility.

PROS

  • ​Environmentally friendly
  • ​Highly flexible

CONS

  • ​Not the most durable suit

Price

This product can be found on Amazon.


ScubaPro Men's Everflex Steamer 3/2mm Wetsuit (Small Tall)
  • Made from 100 percent Everflex neoprene, an X-Foam formulation, for durability and better health.
  • Suits are assembled using a solvent-free water-based glue. SCUBAPRO is the first in the industry to offer this...
  • Multi-thickness panels deliver a superior combination of warmth and flexibility.

 

Henderson Men's Thermoprene Long Sleeve Front Zipper

Deep Sea Diving Suit: Henderson Men's Thermoprene Long Sleeve Front Zipper

Features 

This deep sea diving suit is made from high-quality nylon 2 neoprene. Its seams are GBS-glued and blind stitched. It has a thickness of 3 mm.

PROS

  • ​Good for temperate waters
  • ​Very warm

CONS

  • ​They run a bit small

Price

This product can be found on Amazon.


Henderson Men's Thermoprene Long Sleeve Front Zipper 3mm Shorty,...
  • The Material Combination with a High Quality Nylon 2 Neoprene Delivers Greater Flexibility and Durability
  • High Compression Resistance
  • All Seams Are GBS-Glued and Blind Stitched

 

Mares Mens Flexa

Deep Sea Diving Suit: Mares Mens Flexa

Features 

The Flexa is made from 100% ultra stretch neoprene. It features a back protection system for increased comfort as well as a plush thermos interior. Its design includes knee pads.

PROS

  • ​Designed with knee pads
  • ​Perfect fit

CONS

  • ​None

Price

This product can be found on Amazon.


Sale
Mares Men's Flexa 5-4-3mm One-Piece Wetsuit, Black Grey, XX-Large
  • Should fit snug, but not too tight
  • 100% ultra stretch Neoprene for comfort
  • Back protection system for extra comfort

 

Hyperflex Women's Cyclone2

Deep Sea Diving Suit: Hyperflex Women's Cyclone2

Features 

The Cyclone2 is a black deep sea diving suit that comes in sizes 8, 10, 12, and 14. It has a thickness of 3-4 mm and is specially designed for women.

PROS

  • ​Surprisingly warm considering the thickness
  • ​Easy to put on
  • ​Comfortable

CONS

  • ​Hard to find in stock

Price

This product can be found on Amazon.


 

NeoSport Men's Shorty 3 MM Wetsuit

Deep Sea DIving Suit: NeoSport Men's Shorty 3 MM Wetsuit

Features 

The NeoSport is a neoprene suit with a back zipper, an internal key pocket, and an adjustable collar. It is ideal for all water sports, including diving, scuba, paddle boarding, and more.

PROS

  • ​Internal key pocket
  • ​Adjustable collar
  • ​Fairly comfortable
  • ​Affordable

CONS

  • ​None

Price

This product can be found on Amazon.


NeoSport Men's Shorty 3 MM Wetsuit - Backzip Surf Suit for Scuba...
  • Multi-Sport. This wetsuit is designed for all water sports like diving, scuba, paddle boarding, surfing, or kayaking.
  • Warm, comfortable, extremely durable and perfect for all water activities.
  • Constructed from soft and comfortable premium 3mm neoprene material.

 

Bare 5mm Velocity Full Suit Super

Deep Sea Diving Suit: Bare 5mm Velocity Full Suit Super

Features 

The Bare Velocity is a 5 mm suit designed to stretch 200% more than standard neoprene. It features knee pads, and adjustable velcro collar, and zippered ankles.

PROS

  • ​Pull cord for the back zipper
  • ​Knee pads
  • ​Adjustable collar
  • ​Incredibly stretchy
  • ​Warm

CONS

  • ​None; it is easily one of the best diving suits of 2018

Price

This product can be found on Amazon.


Bare 5mm Velocity Full Suit Men's Wetsuit Black, X-Large
  • 100% Super-Stretch throughout the entire suit will stretch 200% more than standard neoprene
  • Better fit and mobility, due to its super stretch capabilities
  • Adjustable Velcro collar - helps keep cold out

 

XCEL 7/6mm Thermoflex Ultrastretch Men's Full Scuba Diving Wetsuit

Deep Sea Diving Suit: XCEL 7/6mm Thermoflex Ultrastretch Men's Full Scuba Diving Wetsuit

Features

The XCEL comes with DuraFlex knee panels and seamless Drylock wrist seals. It features an easy on/off ankle zipper system and lightweight inner flaps.

PROS

  • ​Knee pads
  • ​Flexible considering the thickness
  • ​Fairly warm

CONS

  • ​It is a bit pricey

Price

This product can be found on Amazon.


XCEL 7/6mm Thermoflex Ultrastretch Men's Full Scuba Diving Wetsuit...
  • DuraFlex Knee Panels Pre-bent, contoured, articulating knee panels with durable, flexible DuraFlex, which help minimize...
  • Seamless Drylock wrist seals with exclusive "donut seal"
  • Semi-dry back zipper helps keep more water out with protective spine pad

 

US Divers 3/2mm Men's Jumpsuit

Deep Sea Diving Suit: US Divers 3/2mm Men's Jumpsuit

Features 

This deep sea diving suit has a 3 mm chest panel and 2 mm side panels. It features flatlock stitching for optimal comfort and durability. It comes with a pull cord for the zipper for your convenience.

PROS

  • ​Easy to put on and take off with the pull cord
  • ​Highly durable
  • ​Very comfortable
  • ​Warm

CONS

  • ​None

Price

This product can be found on Amazon.


Sale
US Divers Mercury Wetsuit Full, Yellow, XX-Large
  • 3/2 wetsuit: 3mm chest panel for added warmth and 2mm side panels for greater flexibility
  • Flatlock stitching for comfort and durability
  • Heavy duty, corrosion-free zipper with pull cord for easy on-and-off

 

Aqua Lung HydroFlex 3mm Women's Wetsuit

Deep Sea Diving Suit: Aqua Lung HydroFlex 3mm Women's Wetsuit

Features 

The Aqua Lung is a 3 mm with optimal stretch and comfort. It comes with a hook and loop adjustable neck, a heavy-duty #10 zipper, and a back zipper water shield.

PROS

  • ​Excellent design
  • ​Great longevity
  • ​Highly flexible

CONS

  • ​Runs a bit small

Price

This product can be found on Amazon.


Sale
Aqua Lung Women's HydroFlex 3mm Wetsuit, Black Coral, Small (6)
  • Should fit snug, but not too tight
  • Made from 3mm super-stretch Neoprene
  • Hook and loop adjustable neck

 

O'Neill Men's Epic 4/3mm Back Zip Full Wetsuit

Deep Sea Diving Suit: O'Neill Men's Epic 4/3mm Back Zip Full Wetsuit

Features

The O'Neill is a deep sea diving suit featuring a back-zip system, ultra stretch neoprene, and blind stitched seams. It comes with wind-resistant FluidFlex Firewall Panels for increased insulation.

PROS

  • ​Fantastic insulation
  • ​Perfect fit
  • ​Easy to put on

CONS

  • ​More suited to taller men

Price

This product can be found on Amazon.


Sale
O'Neill Men's Epic 4/3mm Back Zip Full Wetsuit,...
  • Ideal Value Driven Wetsuit; Perfect For Surfing, Diving, Paddle Sports, Lake Activities, And Beach Days
  • Backzip System Provides Easy Entry And Exit With A Water Tight Seal
  • Ultra Stretch Neoprene: Incredibly Soft Premium Material Has Superior Feel, Flexibility, And Elevates Performance

 

​​The Verdict


After reviewing these 10 deep sea diving suits, we decided that the best could be none other than the Bare 5mm Velocity. Not only is it incredibly efficient at thermal insulation, but it is also one of the easiest suits to put on and take off. This is a deep sea diving suit that will last you for years to come.

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