Drysuit undergarments provide additional insulation benefits to divers. When diving in cold water temperatures, these undergarments can help in slowing down the loss of body heat. They come in different textile materials, each with its own set of benefits. We will help you find the right material that is suitable for your needs. We also checked the different drysuit undergarments out there and found the ones with the best insulating features, fit and longevity. Stick around to find out which products we recommend.
In This Guide
- Best Drysuit Undergarment Reviews
- Why Drysuit Undergarment is the Best Choice for You?
- Different Types of Drysuit Undergarment Materials Out There
Best Drysuit Undergarment Reviews
1. SEAC Unifleece Insulating Undergarment Dry Suit
Layering doesn’t have to be bulky, at least not when you are wearing this drysuit undergarment from SEAC. It is made from 2 layers of undergarment that will keep your body warm even while diving in very cold water conditions. Despite its insulating properties, it does make your body sticky and clammy, thanks to its breathable and lightweight layers. Its outer layer has been treated to repel water.
You can prevent the ankles of the pants from riding up by wearing the ankle stirrups. The zippered pockets that you can easily access can help you secure smaller gear. And with its front zippers that are double-ended, you will surely get in and out of your drysuit with ease.
This drysuit undergarment is the perfect second layer. While your drysuit will already do a more than adequate job of keeping you warm, this undergarment takes it up a notch with its 2-layer insulation and thermal benefits. If you are swimming in colder waters, this will definitely keep you warm.
Even large people can fit in this undergarment. It comes in different sizes, so finding the right fit should not be difficult.
The water-resistant properties really help. Water does not seep through your undergarment, so you can stay dry and warm inside.
This undergarment is truly made to last. Everything about it is finely constructed. Many users have used this undergarment multiple times and haphazardly got in and out of it without encountering issues.
The 2-layered material is not bulky. It is actually thin and doesn’t make the body too bulky. It also makes way for fluid movements, so you aren’t feeling constricted when wearing it.
The 3 zippers are a nice touch. You can bring with you more of your important things.
This is also an affordable undergarment that will not break the budget. There is more room for it in your budget even when you have already splurged on other diving gear.
Some said this is thinner than they expected but it still managed to keep them warm even below 70 feet.
2. Stohlquist Bunny Insulating Suit
Unlike other insulating garments made from materials like neoprene, this one is made from fleece. As a textile material for PJs, you might not think twice about getting it but as a drysuit liner? Is fleece a good material for recreational water activities? The answer is yet and this undergarment proves it to you.
It has a double-faced fleece material that offers full body coverage. With this, you don’t have to deal with cold spots that are usually at the base of your back. The ankles and wrist parts all have rib-knit cuffs for comfort and to seal these openings and prevent water from seeping inside.
It’s like wearing your favorite pajamas for diving. If you have an uncomfortable drysuit, get this one to ante up the comfort.
It keeps all those cold spots at bay because of its nifty design. It is also very attractive. It has a semi-snug fit that will not constrict your movements.
The zip in front makes it easy to get in and out of it.
Some divers have used this for diving underwater temperatures as low as 45 degrees and still felt warm. It is a testament to how good its thermal properties are.
It is well-made. It won’t fray, burst at the seams or get damaged easily, so you can get more wear out of this undergarment.
It is also suitable for other water activities like kayaking.
This drysuit undergarment is quite affordable as well.
There were just a few negative reviews about the fit. The color in the photo is also not the same in real life, according to some users.
3. GUL 2018 Radiation Drysuit Undersuit
Easy maintenance and easy wear – these are the things that the GUL undersuit brings to the table. It is made from GUL’s 300g anti-pilling fleece fabric, which is what gives this undergarment the best comfort. Because of the material used, this is also very easy to maintain and clean. The material itself is breathable and isn’t stifling. It also features a quick-drying function, which is something many divers want with their undergarment.
The GUL Radiation Undersuit has superior thermal insulation that keeps users sufficiently warm under water. It also has a neck seal that prevents water from seeping inside. Get in and out of this undergarment in seconds through its reliable two-way zip system.
This is the best for people on a budget. It has a nice price tag that will not put you off if you don’t fancy spending too much money on a drysuit undergarment.
Despite being affordable, it actually offers excellent thermal properties. The fleece material is capable of retaining body heat, so you can stay comfortable in very cold waters.
It is comfortable to use as well. We like how tailored the fit is. It does not bunch up at the legs and arms, thanks to the elasticated waist and ankles. There is even a foot stirrup that will provide additional comfort.
It has a crew cut neck design. That means it won’t get in the way of your drysuit or will not feel bulky when you are wearing a drysuit. It also does not affect the neck seal.
The fleece material has a quick dry function. It is easy to maintain as well.
There is a customer who said he wished the zipper is covered as this can chafe the inside of the drysuit and inflict damages.
4. ScubaPro Climasphere Undergarment
This undergarment is designed to protect you from all sorts of elements. It is more ideal for the avid diver who finds himself outdoors no matter what the weather conditions are. It features Climasphere technology that truly keeps the body nice and warm. Unlike others that are onesies, this one has a two-piece construction and insulation system.
The Climasphere technology that the manufacturer boast of is basically a fleece material with a 4-way stretch. It is not just cold-proof, it is wind-proof as well, great for all those windy days you might encounter at the beach.
This drysuit undergarment is very comfortable. You will be happy to use this under your drysuit as it still allows you a full range of motion, thanks to its four-way stretch fleece material. It won’t constrict your movements, which is great when diving.
It has a good thermal protection property. It can protect you from cold water and high winds. This should be a good addition to your diving paraphernalia.
The two-piece construction of this undergarment is very useful. You can just use the top or the bottom, whatever suits your needs. If it isn’t that cold, you can simply use the top part. It offers a lot of flexibility.
This has a good design that makes this easy to use.
It is well-made. Aside from the durable textile materials used, this also features flatlock seams for added durability.
The wrists have neoprene material that increases warmth. It prevents water from seeping in.
The price is quite steep. If you are an avid diver, you might find the price reasonable but for occasional divers, it might be too expensive.
Why Drysuit Undergarment is the Best Choice for You?
Now which of these undergarments would best fit your needs?
Best Overall Choice: SEAC Unifleece Insulating Undergarment Dry Suit. We think this is really worth your money. It’s not very expensive but you will think it is because of how well-made it is and how effective the materials used are in keeping you warm underwater. It has a great fit and a nice design that will not be inconvenient to wear when doing underwater activities.
Most Comfortable Choice: Stohlquist Bunny Insulating Suit. This is the drysuit undergarment to go for if you like something that has stellar comfort. Since it is made from fleece, it will make you feel like you are wearing PJs while diving. It is not lacking when it comes to style and thermal properties as well. There were those who have worn this insulating suit underwater in temperatures as low as 45 degrees and still felt comfortable. It has a nice price tag as well, great for people on a tight budget.
Most Affordable Drysuit: GUL 2018 Radiation Drysuit Undersuit. This is the drysuit to look for if you are on a budget. You can save a lot of money with this. It doesn’t disappoint when it comes to its thermal features. It still delivers a good amount of warmth even when diving under cold water conditions.
Best Thermal Abilities: ScubaPro Climasphere Undergarment. We highly recommend this to avid divers who often dive in cold water conditions. It has been equipped with excellent thermal properties that will truly keep you warm underwater. It is expensive but if you dive a lot, it is a worthy investment.
Different Types of Drysuit Undergarment Materials Out There
Scrutinizing your various options when it comes to drysuit undergarment material is essential if you want to find one that will truly provide you with the thermal benefits and comfort you are looking for.
Fleece. Fleece is a favorite when it comes to making drysuit undergarments because it truly provides thermal comfort. However, it also brings a lot of benefits to the table including more space to move around. It has more stretch, which will accommodate more bulk. It also has a natural ability to wick out moisture.
Loft. This is more suitable for extremely cold water conditions. The design of these undergarments is akin to the sleeping bags you use for camping. The problem with this is that you need a base layer that is capable of wicking moisture as the loft material itself won’t be able to provide such a benefit.
Merino Wool. Here is another well-known material used for a variety of winter clothing. It does a great job in regulating the temperature of the body and preventing heat loss. It provides you more than adequate warmth without causing the body to overheat. It also has the ability to draw moisture away from the body. It wicks moisture, which is what also helps in preventing overheating. Merino wool also has natural moisture-repellent properties, which can help prevent the material from soaking water.
Incompressible Material. This is a type of material that is a combination of other materials and a result of textile engineering. It is a new technology. Some examples are Spacetek. This type of material has properties that do not get compressed when exposed to depth. That means that when you are underwater, it does not drive more air into the drysuit, which can help it prevent heat loss. It also reduces buoyancy, which might help professional divers gain more control while diving.
These are the best drysuits you can get for the money:
- SEAC Unifleece Insulating Undergarment Dry Suit
- Stohlquist Bunny Insulating Suit
- GUL 2018 Radiation Drysuit Undersuit
- ScubaPro Climasphere Undergarment
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