Rab Nucleus Jacket

Weighs 350g (Medium size)
Code: AW18153
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The Rab Nucleus Jacket is a Thermic fleece mid-layer with a full length zip. Stretch mid-weight fleece provides insulation and mobility. 

Rab says:

The Nucleus Jacket is a mid-weight fleece with stretch, offering all round insulation for walking, scrambling, and climbing in cold conditions.

Comfortable and very wicking, the Nucleus Jacket is made with Thermic™ stretch mid-weight fleece with an oval-grid back. A perfect midlayer, the Nucleus Jacket will sit comfortably over a baselayer and under a hardshell, moving moisture through your layers and away from your skin, ensuring you stay dry and warm.

Featuring double cuffs, hand pockets, and full length zip, the Nucleus Jacket provides all round insulation and mobility for everyday adventures and all mountain use.

| Click here for more info on Rab, product updates and New Season information.

This latest version of the Rab Nucleus Jacket has had some slight tweaks. The fabric has been updated to a Thermic stretch mid-weight fleece with an oval-grid back from the original double knit fleece fabric. This is a little more durable and has a slightly harder face to it which should wear better, preventing the dreaded pilling. We would say this fabric has made it a little warmer and the overall styling of the jacket has been updated for a better fit.

The new fabrics provides warmth and effective moisture management so it can be worn as a baselayer in colder conditions. It uses different textures on the inside and outside to improve performance. The outer has a smooth durable surface and the inner has a grid pattern that provides warmth without compromising breathability.

The flatlock low bulk construction ensures it will layer exceptionally well and the soft, wicking fabric feels cosy next to the skin. It works perfect as an outer layer when climbing or hill walking in warm conditions, or underneath a larger layer in colder conditions.

- Reviewed by Ultralight Outdoor Gear

  • Thermic™ stretch mid-weight fleece with an oval-grid back
  • YKK® VISLON® front zip
  • 2 YKK® zipped hand pockets
  • Flatlock low bulk seams
  • Double cuffs
  • Small weighs: 322g
  • Medium weighs: 350g
  • Large weighs: 376g
  • XLarge weighs: 404g
  • XXLarge weighs: 432g
  • Fit: Regular


  • Fabric Outer: Thermic™,226g/m² 92% polyester 8% elastane
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