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Arcteryx Nuclei FL Jacket - Men's

Arcteryx Nuclei FL Jacket - Men's
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Windproof, light, and packable Coreloft™ insulated hoody for climbing and other alpine pursuits. | FL: Fast and Light.

Fast and light alpine travel’s static phases require you stay warm while protecting yourself from chilling winds. Inspired by persistent athlete demand, and redesigned to their exacting specifications, the next-generation Nuclei FL Jacket is lighter, more resilient, and delivers outstanding thermal performance for remarkably little weight. The Arato™ 10D ripstop is windproof and durable, Coreloft™ insulation provides effective warmth – even if wet – and the insulated StormHood™ adds protection.

Weight: 325 g / 11.5 oz
Fit: Trim fit, Hip Length, Centre back length: 75 cm / 29.5 in
Activity: Rock Climbing / Alpine Climbing
Model: 25170

Technical Features

  • Windproof
  • Durable
  • Water resistant


  • Coreloft™ synthetic insulation provides warmth with minimal weight and bulk

Design & Fit

  • Trim fit for athletic performance


  • Articulated patterning for unrestricted mobility
  • Gusseted underarms for mobility and comfort

Hood Configuration

  • Adjustable StormHood™ with soft brim gives added protection when needed
  • Helmet compatible

Hem Configuration

  • Adjustable harness compatible hem

Pocket Configuration

  • Two hand pockets with zippers
  • Two internal dump pockets


  • Arato™ 10r - 100% nylon
  • Coreloft™ Continuous 65 (65g/m²) insulation


  • Machine wash in cold water on a gentle cycle
  • Do not bleach
  • Tumble dry on low heat on a delicate setting
  • Do not iron
  • Do not wring
  • Do not dry clean

Part Numbers

Option UPC Store SKU
Cinder / X-Large 686487431843 JAC56257990