Men's FRX Insulated Jacket

Style: K00065_K0006505_48
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KJUS FRX is Back!

Back by popular demand and re-engineered for even better technical performance, meet your new favorite insulator. Made of a premium soft and stretchy Japanese fabric with an added exterior treatment to make it water and stain resistant. This fabric is then filled with a light-weight synthetic insulation and heat bonded. Featuring Merino wool fabric inserts specially developed into a grid-like pattern with an open structure for optimal wicking and breathability. Additional ventilation options make this the perfect jacket to wear under your favorite KJUS shell or by itself on a Spring day.

Product Overview

  • K branding badge on right shoulder
  • 2-way water-repellent VISLON® YKK® zipper in center front
  • K branding badge on left chest
  • Chest pocket with hidden YKK® zipper
  • Preshaped stand up collar with chin guard
  • Fixed hood with one hand adjustment and chin guard
  • One interior mesh storage pocket and one YKK® zipper pocket
  • KJUS AC-Vent™ ventilation system
  • Preshaped set-in sleeves
  • Sleeve hem adjustment with Velcro®
  • Primeflex ultra-stretch softshell
  • Hand pockets with water-repellent YKK® zippers
  • Regular fit
  • Style: K00065_K0006505_48
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    Light warmth

    Specially engineered materials provide warmth in mild temperatures.   

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    Fabric is coated with a durable polymer barrier that reduces surface tension, ultimately repelling moisture and dirt. For optimal performance, wash garment and reapply treatment according to

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    This KJUS-patented forearm venting system speeds the body's natural cooling process. Vents located in the lower arm allow for fine-tune air circulation to microregulate your temperature.   

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    3D Technology

    Full stretch throughout all layers, from the lining, insulation, outer fabric, and seams to create the ultimate range of movement without sacrificing warmth.   

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    Polartec® Alpha®

    This military-grade fleece keeps you warm, even when the body is wet. It is quick drying, highly durable and has a high warmth-to-weight ratio.   

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    This product contains fabrics, trims, and/or insulations obtained from varying amounts of recycled materials that are designed to have a reduced environmental impact.   

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     Highly stretchable fabric that expands and retracts in sync with the body and provides unrestricted freedom of movement.   

Product Specifications

2-layer fabric
Face Fabric
100% Polyester;75% Polyamide, 25% Wool
100% Polyester (50g Polartec Alpha)
89% Polyester, 11% Elastane
DWR treatment
Product Care
Machine wash 30º - mild process Machine wash 30º - mild process Do not bleach Do not bleach Do not tumble dry Do not tumble dry Do not iron Do not iron Do not dry clean Do not dry clean


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Questions & Answers