The new species of warm, light and breathable – the Isotherm Hoody’s active insulation is made with the ice climber or backcountry skier in mind. The Polartec® Alpha®, a new state-of-the-art insulation, banishes the need for impervious down-proof fabrics. Rather, this hoody is made with a ridiculously lightweight, abrasion-resistant fabric and lined with a breathable DriClime® mesh. The result is a lighter, more breathable insulator that adjusts to every need.
Polartec® Alpha® is a new state-of-the-art synthetic insulation that banishes the need for impervious down-proof fabrics by offering a rare combination of lightweight warmth and true breathability in a "puffy" style garment.
Polartec® Alpha® is a new concept in synthetic insulation focused on unsurpassed thermo-regulation. Unlike conventional synthetic insulations Polartec® Alpha® is a knit material that offers excellent stability and superior durability without the need for scrims or tightly woven fiber proof lining fabrics.
Its unique knit structure allows for the use of highly breathable lining fabrics which permit body heat and moisture vapor to move through the insulation. This air permeability allows for warm air to move from areas of high concentration to areas of low concentration creating a more even distribution of warmth with-in the garment.
DriClime® mesh is a bi-component denier gradient dimensional knit made of two different denier yarns. Using extremely fine deniers this knit is extremely light with superior wicking performance.
The larger outer yarns are a special filament yarn with an open capillary structure, which pulls the moisture away from the skin to the backside of the mesh where it spreads to increase evaporation. The dimensional structure of the knit combined with the smaller denier yarns on the backside of the mesh increase the surface area allowing for greater moisture holding capacity.
This technology increases the interior comfort of the garment by enabling the wearer to feel less clammy and more comfortable over a wide range of temperatures and conditions. The mesh prevents condensation from collecting on the skin no matter what the level of activity due to its 3 dimensional structure. The dimensional knit structure also helps by spreading the moisture over a larger surface area maximizing the efficiency of the evaporate process. This technology solves the problem of condensation and internal comfort that even the most breathable of fabrics have problems with during high intensity activities.
Content: 78% Polyester, 22% Nylon
Total Weight: 32 g/m2
Why do we encourage proper care of our clothing and gear?
Because you have invested in (or are thinking about investing in) one of the most technically advanced pieces of apparel or equipment you'll ever own and we want to make sure you have the information you need to protect and care for your purchase. Proper care assures you will optimize the performance of your Marmot product and maximize its service-life.