Women's Isotherm Hoody

$225.00  | #77480

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.

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Women's Isotherm Hoody


Feature List
Attached Hood, Softshell Shoulder Reinforcement, Zip Chest Pocket, Zip Hand Pockets, Elastic Bound Cuffs, Elastic Draw Cord Hem
Main Materials
100% Nylon Double Rip 0.9 oz/ yd, 86% Polyester, 14% Elastane 4.0 oz/yd
Center Back Length (Base of neck to bottom of hem)
Athletic Fit
0lbs 14.7oz (416.7g)
Insulation Material
Polartec® Alpha®


Polartec® Alpha®

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.

What is it?

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.

How does it work?

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.

What are the benefits of this technology?

  • High breathability allows unrestricted movement of moisture vapor
  • Dries 20% faster than conventional synthetic insulations
  • Extremely versatile much more comfortable in a much wider range of activities than conventional synthetic insulated garments.
  • Highly durable knit structure allows the use of highly breathable lining fabric for maximum air permeability.


What is it?

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.

How does it work?

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.

What are the benefits of this technology?

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.

Performance Specifications

Content: 78% Polyester, 22% Nylon
Total Weight: 32 g/m2

Wash & Care

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.

Clothing Care

  • Machine wash cold
  • Wash separately
  • Powdered detergent
  • Gentle cycle
  • No fabric softeners
  • Do not iron
  • Do not bleach
  • Do not dry clean
  • Tumble dry low
  • Close all fasteners