Santi BZ400X Undersuit
Santi BZ400X Undersuit
Mens Santi BZ400X Undersuit
Mens Santi BZ400X Undersuit

Santi BZ400X Undersuit - Men's

Sale price£340.00 Regular price£490.00
Save £150.00

Santi has used the best materials, technologies and expertise to produce Santi BZ400X Undersuit with many features. It is designed for cold waters with temperatures less than 7°C making it also ideal for long deep diving with decompression.

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Dispatched in 1 to 2 days

Contact Form & Details

Underwater Explorers Ltd. | DirDirect
Unit 1, Maritime Business Centre, Mereside
Dorset DT5 1FD
Registered in England no. 05591766

sales@dirdirect.com +44(0)1305824555 

The Original SANTI BZ400X 

The original Santi BZ400X Undersuit (Mens) was designed for cold waters with temperatures less than 7°C, making it popular for long dives and diving requiring more extended decompression stops.

The BZ400X, now on special offer for select sizes, has all the solutions you need as a diver. Santi has used the best materials, technologies, and expertise to produce this undersuit with many features.  

With feminine details, the BZ400X is also available in a lady’s version, Santi BZ400X Ladies First.

Santi BZ400X Undersuit Key Features

  • Breathable
  • Two side pockets
  • One inside pocket on the left chest
  • Reflective tapes
  • Thumb loops that supply air to dry gloves
  • Elegant and comfortable collar and yoke covered with softshell
  • Two-way zip
  • Reinforcing patches on knees, shoulders and back
  • In waist-elastic gusset made of windproof fabric
  • Shoulder and knee gussets allow free movement
  • Inside suspenders
  • Wide (10cm) elastic ankle bands prevent moving up the legs
  • P-valve and heating openings

Best Thinsulate Material

Santi has used the best materials and available technologies for the BZ400X undersuit.

The Thinsulate™ BZ400 Insulation, recommended by 3M, provides effective insulation, resistance to moisture and breathability. It is one of the best insulations that can be used in undersuits.

It is compressed, does not take up too much space under the drysuit, and does not restrict the diver’s movement.  It has a net layer, which makes the BZ400X even more durable and practically indestructible.

  • Thinsulate™ BZ400 Insulation
  • Lining: Micropolar weight 420g/m, warmth: 1.80 CLO
  • Outside layer: Polyamide, Polyester
  • Weight: 2.1kg
SKU: 2003.S