Aerotherm® thermal insulation harnesses the unique properties of Aerogel which is the main component of Aerotherm®. This cutting edge technology will protect you from extreme hot and cold weather conditions.
Composed of over 90% air, aerogel is a highly effective insulator with the lowest thermal conductivity of any solid; Aerotherm uses silica aerogel in producing a strong, durable, and flexible material that is 2 to 8 times more effective than traditional thermal insulation.
Advantages of Aerotherm®:
- Highest thermal performance
- Minimum thickness, which allows a thinner design with superior thermal performance
- Loft not required to maintain insulating power
- Doesn't compress or lose performance under a load
- Waterproof, even at high temperatures
- Maintains thermal conductivity in wet conditions
- Durable in a normal wash/dry cycle
Aerogel is created when silica is gelled in a solvent. When the solvent is removed, "puffed up" sand with up to 99% porosity remains. Nanoporosity slows heat and mass transport, which makes Aerogel an effective insulator; it also has the lowest thermal conductivity of any solid. This strong, flexible, durable material is 2 to 8 times more effective than traditional thermal insulation.
Aerogel Thermal Conductivity vs. Other Materials
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Other materials require loft to achieve their insulation value, but pressure causes them to compress dramatically and lose their loft along with their insulating capacity. Aerotherm® barely compresses and doesn't need loft to deliver its high insulation value. Only a 2mm thick layer of Aerotherm® is enough for effective apparel insulation; footwear insulation typically uses 3mm.
At 15 psi pressure, Aerotherm® retains over 95% of its original thickness and over 97% of its original thermal performance.
The breathability rating is a measurement of vapor movement through the material, and is displayed as the grams of water that move through a square meter of fabric in a 24 hr period (g/m2/24hr). Take this breathability rating as a guideline, with a grain of salt, because lab testing results for breathability vary greatly and don’t always reflect real-world performance.