Possess Sea Industrial Co., Ltd. - Drysuits Division
Professional Drysuit Manufacturer, Supplier and Exporter in China
  • Scuba Diving
Contact: Ms.Maggie, Mobile / WhatsApp: +86 138 168 15888, E-mail: maggie@wetsuit.asia

Drysuit Thermal Undersuit - Manufacturer and Supplier

Thermal undersuit are used to keep you warm during diving. Neoprene drysuit have a certain degree of thermal insulation performance, but membrane drysuit hardly have any thermal insulation performance. Diving in a cold environment usually matches the corresponding thermal undersuit according to the temperature. In extreme environments, an electrically electric heating undersuit is also an option.

The performance of thermal undersuit made of different materials is quite different. The materials used to make thermal undersuit are breathable, light and moisture-proof. Primaloft®, DuPont Thermolite®, 3M Thinsulate™ of thermal insulation cotton are excellent materials for making thermal undersuit. We can provide Primaloft® and 3M Thinsulate™ BZ200 & BZ400 of thermal insulation cotton, which can maintain excellent warmth and breathability in humid environments.

We can also provide electric heating undersuit products used in extreme environments, including a complete system or matching thermal undersuit. The complete system includes battery, E/O cord, cable-passable inflation valve or cable-passable valve base (only for SI-TECH system), electric heating undersuit, we also provide the above-mentioned related parts for other companies' electric heating undersuit system.

  • Drysuit Thermal Undersuit

Drysuit Thermal Undersuit

Material: Primaloft® or 3M Thinsulate™ thermal insulation cotton composite fabric, outer layer: 70D nylon (windproof), middle layer: thermal insulation cotton, inner layer: fleece, the whole is breathable, and it can maintain excellent thermal insulation and breathable performance even after being wet.

Pocket: Two pockets.

Shoulder / Waist: Stretch fabric makes movement more flexible.

Zip: YKK® two-way zip.

Suspenders: Built-in cross elastic suspenders.

Note: The outlet of pee valve and electric heating system can be opened at the designated position as required.

  • Drysuit E/O cord
    E/O cord
  • Drysuit Cable-Passable Inflation Valve
    Cable-Passable Inflation Valve
  • Drysuit Cable-Passable Inflation Base
    Cable-Passable Inflation Base
  • Drysuit Cable-Passable Inflation Base + Inflation Valve
    Cable-Passable Inflation Base
  • Drysuit Cable-Passable Inflation Base + Valve Blanking Plug
    Cable-Passable Inflation Base

Drysuit Eelectric Heating Undersuit Accessories

Explain: In order to cope with the extreme environment, we added an electric heating module to the thermal undersuit, connected to an external large-capacity pressure-resistant battery pack, which has achieved the effect of active heating.

Cable: Underwater pluggable cable (E/O cord), suitable for replacing multiple sets of batteries underwater.

Connection Method: Cable entry through the cable-passable inflation valve or the cable-passable valve base (suitable for SI-TECH® valves or independent openings).

Drysuit Type:

Type Neoprene Drysuit Butyl Drysuit Breathable Drysuit
Material Neoprene Fabric Butyl Fabric Breathable Fabric
Process Glue & Blind Stitch + Glue Tape Flatlock Stitch + Glue Tape Flatlock Stitch + Hot Tape
Firmness Good Good Ordinary
Easy to Carry Not Good Ordinary Good
Thermal Insulation Good Little Little
Valve Inflation Valve, Exhaust Valve Inflation Valve, Exhaust Valve No or Dump Valve
Applications Diving Diving Water Sports, Rescue

Note: Breathable tri-laminate drysuit are not suitable for diving, but because of its light and low-cost characteristics, many brands have launched ultra-lightweight travel drysuit (equipped with inflation valve and exhaust valve) made based on breathable tri-laminate fabric, but it can generally only be used for diving at a depth of no more than 10 meters. In fact, there are also lightweight options for butyl tri-laminate fabric, but the price is more expensive than breathable tri-laminate fabric.

Drysuits Leaking and Maintenance Problems:

All our drysuits are tested for pressure leaks in a test pool before leaving the factory to ensure that the drysuits do not leak when shipped, but the harsh transportation environment (Abnormal collision and squeezing) and incorrect storage (abnormal squeezes) occasionally cause water leaks (rarely found).

Unless drysuits are rarely used, water leakage is practically impossible to avoid. Due to the use environment, strength, habits, matching, cleaning and storage methods and occasions, component life and aging and other factors, many drysuits are used after dozens to hundreds of times, it will happen water leaks.

Leaking does not mean that drysuits can no longer be used, most of the water leakage conditions can be repaired. We provide warranty services (quality problems) and repair services (use problems). Unless the aging material has no repair value, everything else can be repaired.

Under normal circumstances, common simple problems are recommended to customers to repair by themselves (such as small leaks, etc.) to save time and transportation costs. We have optional repair kits when we leave the factory, and various repair kits are also available on the market. If there is a big problem, it is recommended that the customer return to the factory for repair (for example: replacing the waterproof zipper, repairing a large break, etc.).