Santi BZ400 Heated Undersuit



Santi BZ400 Heated Undersuit

The SANTI Extreme BZ400 Heated Undersuit is Officially the warmest undersuit that Santi offers. It is designed for diving in water temperature less than 42 degrees/6 degrees Celsius. It is also ideal for long deep diving, with decompression.

Only the best in materials and technologies available were used to produce this undersuit.

We now offer In Store Financing for your new Drysuit Heating system. Finance Your Drysuit CLICK HERE

Thinsulate BZ 400 insulation is recommended by 3M as optimal for diving undersuits, because it is compressed and does not take too much space under the suit. It also has a net layer, which makes the undersuit even more durable and practically indestructible. The lining is made of soft micropolar 190 gr.

The outside layer is made of 6.6 Polyamide 100% additionally reinforced with polyester fabric in the areas exposed to damage.

In this model we used also good solutions from other versions, like elastic gussets in arms and waist, wide ankle bands and water-resistant cuffs with tapes, which supply air to the dry gloves.

Key Features:

Heating time: battery 10 Ah /about 60 minutes of heating; battery 20 Ah/about 120 minutes of heating
400g Thinsulate™ Insulation
Made of fully breathable materials
Keeps you warm even when the heating is off
Evenly distributed heating wiring that allows you freedom of movement
Warms up the whole body corpus, thighs and arms
Extra pocket on the wire ends
Waterproof plug, compatible with other Santi products
Male and female plug
P-valve holes on both legs in standard
Napoleon pocket
Three pockets – one of them fastened
Wide (4 in /10 cm) elastic ankle bands
Water-resistant cuffs
Tapes, which supply air to the dry gloves
Banded collar
Two-way zip protected with a flap
Elastic gussets in arms

The Santi Heated Undersuit is available in Stock Sizes or Custom Fit.

Available mens sizes:

Available ladies sizes:

MTM/Custom offer Available.  Modified Stock Alterations available up to 4 alterations -6 or +6 cm’s at no extra cost.

Alterations:  We have found that the large majority of our Santi Diving suit purchasers are able to fit one of our standard size rental or stock suits with just a few alternations or modifications and given that the standard size suits include up to four alterations at no charge, it is much more economical and easier for Santi to focus on this rather than trying to complete a full MTM suit for people that don’t really need it. This allows you, the customer to try a stock suit at DDS and see for yourself the areas that may need modification and removes some of the risk involved with complete MTM products. Please note that the four measurement changes are limited to 4-5 cm in each alteration.

Buy Santi Diving Drysuits, Heating Suits and accessories online in Canada with Free Shipping  from Dan’s Dive Shop, Canada’s Largest Stocking Dealer and a Top North American Santi Premium Dealer.

This Suit is Special Order, please allow a minimum of 4-6 weeks delivery.  Verify sizing and review terms and conditions before ordering.

Additional information

Weight 8 kg
Dimensions 76.2 × 60.96 × 30.48 cm

Ladies, Mens


Custom Fit Upgrade, Double Extra Large, Double Extra Large Short, Extra Large, Extra Large Tall, Extra Small, Large, Large Tall, Medium, Medium Large, Medium Large Tall, Medium Tall, Small, Small Tall, Triple Extra Large


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

You may also like…