BlueSkyBlue Atmos 5 layer flying suit The BlueSkyBlue Atmos 5 layer flying suit is the Worlds FIRST and ONLY 5 LAYER flying suit. It is available with or without plastic thigh map pockets (select through Leg Length). It is manufactured with 260gsm of insulation as follows: 1. The outer CORDURA ® fabric which is windproof and has a great tough feel for durability. 2. The inner middle layer is 80gsm THINSULATE (TM) made by 3M. The unique microfibres of ThinsulateTM Insulation are about ten times smaller than the fibres of most other synthetic insulations, which means they’re much more efficient at trapping air, and more effective at keeping you warm. It also means more fibres can be packed into the same space, where they can reflect back more of the body’s radiant heat without being bulky. 3. The middle layer is 100gsm POLYFILL QUILTING. This is a superior insulating material which is designed to retain body heat as much as possible. 4. The outer middle layer is a further layer of 80gsm THINSULATE (TM) made by 3M. 5. The suit lining is black BOSKY, this is a new material in our suit range which is dyed using only azo free materials in the production process and has improved wear properties.