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If cared for properly, your Undersuit with Thinsulate Insulation will provide years of service. Please read the following instructions carefully.

If directions are not followed, break down of the insulation can occur.

Special Note: You can wash your SANTI Undersuit as frequently as you need. The insulation used to produce our Undersuits does not change during washing and the way we made our Undersuits gives you possibility of multiple washing even in industrial conditions. Repeated washing is even recommended to restore excellent insulating qualities of Thinsulate™.

We recommend wearing thermal underwear beneath your Undersuit. This liner will absorb odors and perspiration from the body. Avoid using cotton underwear because it saturates with sweat easily and conducts heat away from the body when wet. Thermal underwear can also be washed as often as it is necessary.


Machine-wash in cold water at the temp. of 40 deg. C. Hand washing is not recommended since it is difficult to work the water into and through the Undersuit to flush away dirt and it is also difficult to remove the water by hand without damaging the insulation. The Undersuit should be washed separately to avoid crowding in the machine and to maximize the cleaning action. Add detergent for the first washing, then wash the Undersuit again – this time without any detergent.

Warning: Spinning is not recommended.

To dry, lay the Undersuit flat or tumble dry using a delicate cycle (very low temperature) or air only. For the first drying cycle, turn the Undersuit inside out. Repeat, if the lining is still wet, but for the second drying cycle – turn the Undersuit right side out.

Warning: Do not hang to dry!! The weight of the water in the garment will cause the Thinsulate™ Insulation liner to separate in shoulders area.
When you need to do some minor cleaning of the Undersuit that has not been washed before, please follow these recommendations:

* Salt crystals – wash in clear water without detergent.
* Disinfect – it may be required after long-term diving (saturation diving) or to remove mold if the Undersuit was stored wet in a dark place. Add some liquid non-chlorine bleach (follow bleach label instructions) at the beginning of the wash cycle. DO NOT add detergent.
* Odor – if odor is the only problem, wash the Undersuit using one cup of white vinegar then put the Undersuit through one complete wash cycle with water only.
* If the Undersuit has already been washed using a detergent and you have problems with water absorption, it is probably because all of the soap has not been removed. Putting it through 2-4 complete washing cycles without detergent should restore the insulating properties of the Undersuit.

Warning: Use of chlorine bleach can cause color change or spotting and may damage the insulating layer.