Our Apeks, Aqualung & Mares under-suits provide crucial thermal protection when diving, trapping air and maintaining body heat during the dive and also between dives. Modern undersuits can range from simple fleece type garments to advanced suits with anti-compression panels or even built in heating. Your thermal requirements will depend on water temperature, your suit type and how much you feel the cold.

Water transfers heat from the body up to 25 times faster than air which means a divers will quickly start to feel the cold without protection, the colder the water the quicker the onset and the greater the need for undersuits and base layers. Drysuits have their own thermal properties, some are much better than others. Neoprene suits are much warmer and require thinner undersuits but membrane suits provide very little thermal protection and therefore require thicker or even layered undersuits.

  • APEKS THERMIQ ONE
    698 Points
    • APEKS THERMIQ ONE
    • APEKS THERMIQ ONE
    • £349.00
    • RRP: £360 Free UK delivery on all orders over £50 Advanced fleece fabric is made from graphene wrapped fibres which acts as a superconductor. One piece design to allow for easier gas management inside the drysuit. Zipped front pockets.
  • MARES ACTIVE HEATING VEST
    442 Points
    • MARES ACTIVE HEATING VEST
    • MARES ACTIVE HEATING VEST
    • £221.00
    • RRP: £221 Free UK delivery on all orders over £50 Double zipper for maximum comfort. it can also be used while seated. Supplied with rechargeable batteries and charger. Adjustable temperature control setting.
  • MARES ACTIVE HEATING PANTS
    424 Points
    • MARES ACTIVE HEATING PANTS
    • MARES ACTIVE HEATING PANTS
    • £212.00
    • RRP: £212 Free UK delivery on all orders over £50 Double zipper for maximum comfort. it can also be used while seated. Supplied with rechargeable batteries and charger. Adjustable temperature control setting.
  • APEKS THERMIQ CARBON LONG SLEEVE LADIESAPEKS THERMIQ CARBON LONG SLEEVE LADIES
    286 Points
    • APEKS THERMIQ CARBON LONG SLEEVE LADIESAPEKS THERMIQ CARBON LONG SLEEVE LADIES
    • APEKS THERMIQ CARBON LONG SLEEVE LADIES
    • £143.00
    • Free UK delivery on all orders over £50 Triple layer soft shell fabric ensures the top keeps you warm in all environments. Breathable fabrics prevent moisture build up when used underneath a drysuit. Advanced lining is made from graphene wrapped fibres which acts as a superconductor.
  • APEKS THERMIQ CARBON LONG SLEEVE MENSAPEKS THERMIQ CARBON LONG SLEEVE MENS
    286 Points
    • APEKS THERMIQ CARBON LONG SLEEVE MENSAPEKS THERMIQ CARBON LONG SLEEVE MENS
    • APEKS THERMIQ CARBON LONG SLEEVE MENS
    • £143.00
    • Free UK delivery on all orders over £50 Triple layer soft shell fabric ensures the top keeps you warm in all environments. Breathable fabrics prevent moisture build up when used underneath a drysuit. Advanced lining is made from graphene wrapped fibres which acts as a superconductor.
  • APEKS THERMIQ CARBON SHORT SLEEVE LADIESAPEKS THERMIQ CARBON SHORT SLEEVE LADIES
    270 Points
    • APEKS THERMIQ CARBON SHORT SLEEVE LADIESAPEKS THERMIQ CARBON SHORT SLEEVE LADIES
    • APEKS THERMIQ CARBON SHORT SLEEVE LADIES
    • £135.00
    • Free UK delivery on all orders over £50 Triple layer soft shell fabric ensures the top keeps you warm in all environments. Breathable fabrics prevent moisture build up when used underneath a drysuit. Advanced lining is made from graphene wrapped fibres which acts as a superconductor.
  • APEKS THERMIQ CARBON SHORT SLEEVE MENSAPEKS THERMIQ CARBON SHORT SLEEVE MENS
    260 Points
    • APEKS THERMIQ CARBON SHORT SLEEVE MENSAPEKS THERMIQ CARBON SHORT SLEEVE MENS
    • APEKS THERMIQ CARBON SHORT SLEEVE MENS
    • £130.00
    • Free UK delivery on all orders over £50 Triple layer soft shell fabric ensures the top keeps you warm in all environments. Breathable fabrics prevent moisture build up when used underneath a drysuit. Advanced lining is made from graphene wrapped fibres which acts as a superconductor.
  • AQUA LUNG CERAMIQ SKIN LONG SLEEVE MENSAQUA LUNG CERAMIQ SKIN LONG SLEEVE MENS
    230 Points
    • AQUA LUNG CERAMIQ SKIN LONG SLEEVE MENSAQUA LUNG CERAMIQ SKIN LONG SLEEVE MENS
    • AQUA LUNG CERAMIQ SKIN LONG SLEEVE MENS
    • £115.00
    • RRP: £149 Free UK delivery on all orders over £50 Tri-laminated fabric: Lycra on the outside, PU membrane with Ceramic Technology. The Breathable PU membrane facilitates the transfer of moisture from inside to outside. Ceramic technology: Uses a blend of 30 metallic oxides derived from volcanic rocks, heated at 1600°C.
  • AQUA LUNG CERAMIQ SKIN LONG SLEEVE LADIESAQUA LUNG CERAMIQ SKIN LONG SLEEVE LADIES
    230 Points
    • AQUA LUNG CERAMIQ SKIN LONG SLEEVE LADIESAQUA LUNG CERAMIQ SKIN LONG SLEEVE LADIES
    • AQUA LUNG CERAMIQ SKIN LONG SLEEVE LADIES
    • £115.00
    • RRP: £135 Free UK delivery on all orders over £50 Tri-laminated fabric: Lycra on the outside, PU membrane with Ceramic Technology. The Breathable PU membrane facilitates the transfer of moisture from inside to outside. Ceramic technology: Uses a blend of 30 metallic oxides derived from volcanic rocks, heated at 1600°C.
  • AQUA LUNG CERAMIQ SKIN SHORT SLEEVE MENSAQUA LUNG CERAMIQ SKIN SHORT SLEEVE MENS
    210 Points
    • AQUA LUNG CERAMIQ SKIN SHORT SLEEVE MENSAQUA LUNG CERAMIQ SKIN SHORT SLEEVE MENS
    • AQUA LUNG CERAMIQ SKIN SHORT SLEEVE MENS
    • £105.00
    • RRP: £131 Free UK delivery on all orders over £50 Tri-laminated fabric: Lycra on the outside, PU membrane with Ceramic Technology. The Breathable PU membrane facilitates the transfer of moisture from inside to outside. Ceramic technology: Uses a blend of 30 metallic oxides derived from volcanic rocks, heated at 1600°C.
  • AQUA LUNG CERAMIQ SKIN SHORT SLEEVE LADIESAQUA LUNG CERAMIQ SKIN SHORT SLEEVE LADIES
    210 Points
    • AQUA LUNG CERAMIQ SKIN SHORT SLEEVE LADIESAQUA LUNG CERAMIQ SKIN SHORT SLEEVE LADIES
    • AQUA LUNG CERAMIQ SKIN SHORT SLEEVE LADIES
    • £105.00
    • RRP: £119 Free UK delivery on all orders over £50 Tri-laminated fabric: Lycra on the outside, PU membrane with Ceramic Technology. The Breathable PU membrane facilitates the transfer of moisture from inside to outside. Ceramic technology: Uses a blend of 30 metallic oxides derived from volcanic rocks, heated at 1600°C.
  • AQUA LUNG CERAMIQSKIN PANTS MENSAQUA LUNG CERAMIQSKIN PANTS MENS
    198 Points
    • AQUA LUNG CERAMIQSKIN PANTS MENSAQUA LUNG CERAMIQSKIN PANTS MENS
    • AQUA LUNG CERAMIQSKIN PANTS MENS
    • £99.00
    • RRP: £123 Free UK delivery on all orders over £50 Tri-laminated fabric: Lycra on the outside, PU membrane with Ceramic Technology. The Breathable PU membrane facilitates the transfer of moisture from inside to outside. Ceramic technology: Uses a blend of 30 metallic oxides derived from volcanic rocks, heated at 1600°C.