Extreme Jacket

$219.99 Sale Save
Size XS

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The Extreme Jacket:

Made in the USA (-35˚F to 50˚F)

  1. Layer System: Fortress Clothing uses a patented insulation with an outer shell to repel wind and water, and the extreme layer to trap heat and wick away moisture.

  2. Insulating Materials: High-quality patented insulating materials such as synthetic fibers and specialized fabrics are used to retain body heat effectively.

  3. Moisture Management: Insulation are designed to wick moisture away from the skin, keeping you dry and comfortable.

  4. Windproof and Water-Resistant: Many garments are windproof and water-resistant, providing an additional barrier against the elements.

  5. Durability: Fortress Clothing is known for its durability, ensuring that its insulating properties remain effective over time.

  6. Layering Options: The clothing is designed to be a Mid-Layer, allowing you to add providing flexibility in staying warm with this layer and a shell.


Full Dual Head YKK Center Front Zipper
Patented AERIS 500 Insulation Technology (½” / 13mm of loft)  
2 Insulated Hand Pockets
Adjustable Draw Cord at Waist
Lower Side Slits for Ease of Movement

– 100% Polyester Mesh Lining
– 100% Polyester Micro Rip-Stop Taffeta with DWR Finish

Weight 30 oz
Dimensions 12 × 12 × 3 in

XS, Small, Medium, Large, XL, 2XL, 3XL

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Brand Goal

Fortress Clothing® began with a simple, yet ambitious goal: to keep people warm, even in the harshest conditions. This mission has guided our journey from the very start, leading to the development of our innovative Aeris® insulation technology.

Why Fortress?

Fortress Clothing® stands out because it addresses all critical aspects of staying warm outdoors:

  • Warm When Wet: Aeris® insulation evacuates moisture, keeping you warm even when wet.
  • Easy to Move: Our thin, lightweight insulation allows for greater freedom of movement without bulk.
  • Wind-Blocking: Our gear effectively blocks wind, drastically reducing wind chill.
  • Compact: Fortress Clothing compresses easily, fitting into small spaces for maximum convenience.