MilitaryThermal FR®


Polartec® Thermal FR® was created to provide comfortable insulation with the enhanced safety capability to resist intense sources of heat. By designing inherent flame resistance into our fleece technologies we developed greater insulating options for solving the safety requirements of demanding work-sites. These lightweight thermoregulating abilities allow extensive versatility for use in modern workwear designs.

  • Warmth without weight
  • Highly breathable
  • Pill resistant
  • Fast drying
  • Durable
  • Easy care
Best Uses
  • Easy care
Thermal FR® Technology Image


To invent a superior insulating technology we had to rethink the way outerwear fabrics were being made. Current textile processes were neglecting the overall problems faced from the elements and designing materials with limited benefits. We knew we had to create a single fabric with greater versatility. By developing a new process to knitting polyester yarns we could raise up piled fibers and precisely shear them into sheets of soft fabric. This now famously fuzzy surface was inherently more lightweight, breathable, and faster drying than anything in use.


Polartec® Thermal FR® has a lofted fiber structure that creates thermal air pockets to prevent convective heat loss and regulate core warmth. This breakthrough design construction provides the highest warmth per weight ratio for insulating materials while still remaining highly weather resistant and durable.

A soft double-sided face gives fleece the versatility to integrate with layered systems, whether worn directly against the skin or on top of other fabrics. The hydrophobic properties of Polartec® Thermal FR® fleece further enhance the ability to repel water, resist saturation and dry quickly.