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Our range of men's synthetic insulated jackets offers an alternative to down insulation. Synthetic insulation is an exciting area for fabric technology right now and is seeing constant progress and innovation as manufacturers try to emulate the warmth to weight ratio that we get from down products by using featherless technology. At Rab® that development has lead to the creation of our Cirrus™ insulation.

Cirrus™ technology is made up of water-resistant synthetic fibres designed to mimic the structure of natural down; this helps to create what could be described as a synthetic down jacket rather than a coat filled with blocks of insulation. This advancement in synthetic technology means that our men's insulated jackets offer a better warmth to weight ratio than ever before, without the use of feathers, while also being able to handle moisture and wet weather better than a down jacket can.

If you're looking for a jacket with the unparalleled warmth to weight ratio of down, then check out our range of men's down jackets.

10 Items

per page
  1. Beluga

    Cirrus™ Synthetic

    Nebula Pro Jacket

    £175.00

    Ideal for winter mountain climbing or long days in the hills, the Nebula Pro is a quick-drying insulated jacket designed for winter adventures in cold, ...damp conditions.

  2. Army

    Cirrus™ Synthetic

    Altus Vest (Gilet)

    £100.00

    An essential winter layering piece, the Altus Vest is a quick-drying synthetic vest that lofts like down to offer warmth even in damp or changeable cond...itions.

  3. Beluga

    Cirrus™ Synthetic

    Altus Jacket

    £135.00

    Climb, walk or ski, however you choose to explore the mountains the Altus Jacket is the perfect all-rounder for cold and damp environments.

  4. Steel
    New Arrival

    Cirrus Synthetic

    Cirrus Flex Vest

    £100.00

    With its featherless insulation and Thermic™ stretch fleece panels, our Cirrus Flex Vest provides core warmth while retaining excellent breathability ...and ease of movement.

  5. Red Clay

    Cirrus™ Synthetic

    Nimbus Jacket

    £150.00

    A technical all-rounder ideal for cold days at the crag and winter walking, the Nimbus is a quick-drying insulated jacket designed to handle cold and da...mp environments.

  6. Firecracker
    Best Seller

    Cirrus Synthetic

    Cirrus Flex Hoody

    £130.00

    Worn as either a lightweight outer or warm midlayer, the Cirrus Flex Hoody is incredibly versatile, offering durability, breathability, and freedom of m...ovement for any winter adventure.

  7. Ink

    Cirrus™ Synthetic

    Cirrus Flex Jacket

    £115.00

    Worn as either a lightweight outer or warm midlayer, the Cirrus Flex Jacket is incredibly versatile, offering durability, breathability, and freedom of ...movement.

  8. Celestial
    Athlete Pick

    Photon Pro Jacket

    £200.00

    The definitive winter belay jacket, the Photon Pro Jacket is a warm and durable synthetic insulated jacket with a highly water-resistant shell.

  9. Steel

    Xenon Jacket

    £160.00

    Lightweight and breathable, the Xenon Jacket is a lightweight insulated jacket designed for fast and light mountaineering.

  10. Black

    Photon Pants

    £155.00

    Exceptionally warm and highly durable, the Photon Pants are synthetic insulated pants for use on bitterly cold winter expeditions.