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Made with stretchy and breathable Thermic™ fleece, the Megaflux Jacket features reinforced fabric overlays on the chest pockets and elbows for added abrasion resistance. An under helmet hood with stretch binding fits close to the face, while flatlock low bulk seams and a brushed inner ensure comfort during active use.

Designed for active climbs in cold conditions, the Megaflux Jacket offers excellent warmth, mobility and comfort, making it a versatile layer for alpine adventures.

  • Flatlock low bulk seams
  • Matrix™ double weave stretch fabric overlay on chest pockets and elbows
  • Thermic™ stretch fleece with grid face and brushed back
  • 485g / 17.1oz estimate
  • Under helmet hood with stretch binding
  • YKK® VISLON® front zip with internal baffle and chin guard
  • 2 YKK® zipped chest pockets
  • 2 YKK® zipped hand pockets
  • Separate cuffs with thumb loops
  • Fit: Regular


Rab ships throughout the UK, EU and the United States. All UK orders are shipped free of charge by DPD. Orders placed during the week and before midday will typically be delivered within 48 hours, orders placed on weekends will ship on the following Monday.

For more information regarding shipping, including EU and US shipping charges and estimated delivery times, please visit our help center.


If you are unhappy with your purchase, please return it to us within 30 days of receipt. The item(s) must be in resalable condition with tags attached. We are currently unable to exchange items and will refund products returned to us under the policy above.

Please note, we are not able to accept returns for underwear unless the product is faulty or damaged. We advise that you use a recorded courier service to return your item(s) as we cannot be responsible for items lost in the post.

For more information regarding returns and warranty, please see our help center.

Megaflux Jacket Reviews