Modular system

Allows to remove or replace a single pad by yourself

Breathable material

Allow the water humidity to go through the material keeping the skin dry and warm

Invisible wires

Fully compatible with the SF Tech undergarments, all the wires for the heating pads are hidden inside the lining of the sweater


The SF Tech heating system is based on a modular principle that makes it easy to remove or replace heating elements. This system uses heated pads made of breathable fabric that are connected to each other through an electrical wiring. The modular system makes it possible to replace pads or wire, quickly and without having to change the undergarment.

The heating elements have a physical dimension of 33x16cm (13”x6.3”) and provide a maximum power of 10W each, or a total of 40W for the four elements. Each element is designed to be fitted in an internal pouch of the SF Tech sweater or the SF Tech vest. The pads are held in place by a velcro fastener and can be easily removed if necessary. The main distribution cable goes through the lining of the undergarment.

The pads are connected to the main distribution cable by a small waterproof connector. For maximum flexibility and strength, the insulation of the electrical wires is made of silicone and the cables are covered with a nylon braided protective sheath. The connection with the heating valve is made using a waterproof push lock connector, to facilitate connection while gearing up and ensuring a stable connection during the dive.


  • Breathable material
  • Velcro fastening
  • Waterproof connectors with heating pads
  • Waterproof push lock connector with the heating valve
  • Silicone electrical insulation
  • Nylon braided protective sheath

technical data

  • Dimensions (per pad): 33x16cm
  • Supply voltage max: 12V
  • Output power max (per pad): 10W @ 12V
  • Output power max (4 pads): 40W @ 12V
  • Operating current max: 3.3A @ 12V
  • Approximate autonomy (23.8 Ah): 7h15

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