Product Description          Keela's flagship jacket capable of taking you through the toughest conditions imaginable. It helped conquer the highest mountains on the planet and is used by Mountain Rescue Teams, Tactical Forces and expedition teams all around the World.   Reviewed by OE magazine, Adventure Travel and Nepal Himalayan.   Keela’s System Dual Protection (SDP) offers unrivalled protection when it comes to waterproofing and breathability in any conditions.   WHY? – SDP is a unique double layer fabric system with an “Air Gap”. The tough/durable outer layer ensures it can handle wear and tear while a lightweight inner layer offers comfort and creates the 'Air-Gap' to build up warmth. SDP is 100% waterproof, breathable, warm and reduces inner condensation to keep the wearer protected. SDP is used in tough and extreme conditions by Mountain Rescue Teams, Police Forces and Military users all around the World and is trusted by its users.   THE SCIENCE Weather conditions affect the breathability of ALL fabrics and garments. During heavy rain and low temperatures (around 0C to 10C) breathable, waterproof garments stop breathing and experience the ‘occurrence of dew point’ or ‘cold-bridging’. This results in a build-up of condensation. A warm body at 37C will struggle to cope with these conditions and the wearer becomes uncomfortable if the moisture and condensation is not moved away from the body.   SDP uses two layers of fabrics with hydrophilic membranes and an “Air Gap” in between, to reduce the build-up of condensation. The operating principle can be compared to double-glazing systems used for windows, which stops warm air coming into direct contact with cold air. The “Air-Gap” also acts as an insulator to keep in body warmth. The best insulator is air!   The two layers of SDP then ensure the garment remains breathable in cold, wet conditions by a “mechanical” means. The outer layer is a waterproof, breathable fabric with a hydrophilic laminated membrane, so does the work to protect from outside conditions. The inner layer is a revolutionary high wicking liner, laminated onto a hydrophilic film. This inner layer acts like a sponge, absorbing any moisture or water vapour inside the jacket and transporting it away from the body. This acts like a one-way valve taking moisture and condensation away from the body through the lining and into the “Air Gap”; the waterproof laminate ensures the moisture cannot wick back through to the body. It therefore passes through into the “Air Gap” and escapes either through the breathable outer layer at its own rate or by force mechanical ventilation of the “Air Gap” by movement of the wearer.             Manufacturer's Description          Keela's flagship jacket capable of taking you through the toughest conditions imaginable. It helped conquer the highest mountains on the planet and is used by Mountain Rescue Teams, Tactical Forces and expedition teams all around the World.   Reviewed by OE magazine, Adventure Travel and Nepal Himalayan.   Keela’s System Dual Protection (SDP) offers unrivalled protection when it comes to waterproofing and breathability in any conditions.   WHY? – SDP is a unique double layer fabric system with an “Air Gap”. The tough/durable outer layer ensures it can handle wear and tear while a lightweight inner layer offers comfort and creates the 'Air-Gap' to build up warmth. SDP is 100% waterproof, breathable, warm and reduces inner condensation to keep the wearer protected. SDP is used in tough and extreme conditions by Mountain Rescue Teams, Police Forces and Military users all around the World and is trusted by its users.   THE SCIENCE Weather conditions affect the breathability of ALL fabrics and garments. During heavy rain and low temperatures (around 0C to 10C) breathable, waterproof garments stop breathing and experience the ‘occurrence of dew point’ or ‘cold-bridging’. This results in a build-up of condensation. A warm body at 37C will struggle to cope with these conditions and the wearer becomes uncomfortable if the moisture and condensation is not moved away from the body.   SDP uses two layers of fabrics with hydrophilic membranes and an “Air Gap” in between, to reduce the build-up of condensation. The operating principle can be compared to double-glazing systems used for windows, which stops warm air coming into direct contact with cold air. The “Air-Gap” also acts as an insulator to keep in body warmth. The best insulator is air!   The two layers of SDP then ensure the garment remains breathable in cold, wet conditions by a “mechanical” means. The outer layer is a waterproof, breathable fabric with a hydrophilic laminated membrane, so does the work to protect from outside conditions. The inner layer is a revolutionary high wicking liner, laminated onto a hydrophilic film. This inner layer acts like a sponge, absorbing any moisture or water vapour inside the jacket and transporting it away from the body. This acts like a one-way valve taking moisture and condensation away from the body through the lining and into the “Air Gap”; the waterproof laminate ensures the moisture cannot wick back through to the body. It therefore passes through into the “Air Gap” and escapes either through the breathable outer layer at its own rate or by force mechanical ventilation of the “Air Gap” by movement of the wearer.                     
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 About this item 
   
  
System dual protection - queens award for innovation
  
Waterproof, windproof and breathable
  
Superb condensation control with fully taped sealed
  
Attached rollaway hood with wired peak
  
One handed drawcord neck baffle and volume adjuster
  
Removable zipped inner snow skirt