The big comparison of diving suits

The big diving suit comparison

Choosing a diving suit is one of the most important decisions for any diver. The big question? Wet, semi-dry, or dry? The choice depends on the water temperature, the type of diving, and, of course, your budget.

Instead of drowning you in technical specifications, at Diveavenue we have analyzed the best-selling models on the market, answered the questions most frequently asked by the community, and compared the accessories that make all the difference.

1. Understanding the basics: 3 types of wetsuits, 3 uses

Before comparing models, it is crucial to understand the fundamental difference between the three types of wetsuits.

Wetsuit

This is the most common type of suit. It is usually made of neoprene and works by trapping a thin layer of water between the skin and the suit. Your body heats this water, creating a thermal barrier.

Advantages: affordable, easy to put on, very flexible, offers good freedom of movement.

Disadvantages: limited effectiveness in cold water (below 59°F) because the water circulates, causing “flushing” (renewal of cold water) with each movement.

The semi-dry wetsuit

This is the perfect compromise. Made of thick neoprene, it features watertight seals at the wrists, ankles, and neck, as well as a watertight zipper. The goal is to minimize water entry and circulation.

Advantages: excellent thermal insulation in cold water, more comfortable than a dry suit (less buoyancy to manage), versatile.

Disadvantages: more expensive and less flexible than a wet suit. If water manages to seep in, it stays there and can cool you down.

Drysuit

The ultimate in insulation. It does not let in a single drop of water. Insulation is not provided by the suit itself, but by a layer of air and thermal underwear worn underneath.

Advantages: you stay completely dry and warm, even in the coldest waters. Allows for longer and more comfortable dives in hostile environments.

Disadvantages: high cost, requires specific training for buoyancy control, less comfortable and more cumbersome.

2. The most popular models

Here is a comparison of the models most often chosen by divers.

Top 3 Wetsuits

Top 3 Drysuits

3. The community's most frequently asked questions "Does it really keep you dry?"

Yes, a drysuit must keep you completely dry. If there's a leak, it's a problem that needs to be fixed. For semi-dry suits, the goal is to minimize water entry, but small leaks are normal and do not compromise insulation.

"How do I manage my buoyancy with a drysuit?"

This is the main difficulty. The suit inflates and deflates using vents, which allows you to control buoyancy and squeezing. This is why specific training (PADI or SSI certified) is essential for drysuit diving.

"How long does it last?" (lifespan of a suit)

The lifespan of a suit depends on its maintenance. Neoprene tends to compress over time, losing its thickness and insulating power. Trilaminate suits are more durable. The most fragile parts, such as seals and the zipper, require regular maintenance and can be replaced.

4. Accessory comparison: Gloves, hoods, and boots

Accessories are not optional; they are essential for insulation and comfort.

• Gloves: Most divers use neoprene gloves with a thickness of 3 to 7 mm. Models with Kevlar reinforcements (for example from Mares or Beuchat) are particularly popular for their durability. For a drysuit, there are dry gloves that connect via a ring system for a perfect seal (like systems from Santi).

• Hoods: They can be integrated or separate. Models with a bib ("Beaver Tail") fit better under the suit.

• Boots: For open-heel fins, 5 or 7 mm neoprene booties are the norm. They offer good insulation and protect the foot. Brands like Subea (Decathlon) offer quality models at an affordable price. For drysuits, integrated boots are common and ensure complete insulation.

Last tips:

Remember that maintenance is key to extending the life of your equipment. Always rinse your suit with fresh water after each dive and store it on a wide hanger, away from the sun. For any snags on your suits, don't forget that Diveavenue offers a maintenance and repair service accessible right here