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This Winter Rab have refined and improved their range of insulation pieces, alongside introducing a few new standout garments. The highly technical Zero G Down jacket is a major highlight of their new range. Using 3M's featherless insulation Rab have created a comprehensive range of synthetic insulated jackets that replicate the properties of using 600 fill-power down. Read on for more details.

Zero G 1000 Fill-Power Down Jacket

Rab challenged their design team to create the ultimate alpine down jacket - super-lightweight, yet robust enough to stand up to the rough nature of fast-and-light alpine routes. The result is a game changer, the Zero G combines the highest quality 1000FP down with ultra fine Pertex® 7d Quantum fabric, resulting in an unsurpassed weight-to-warmth ratio.

1000 Fill-power down is incredibly high quality, it means that for the warmth this jacket provides, it is the most compressible and packable of almost all down jackets out there.

The Zero G is a specialist piece for those who truly appreciate every gram saved yet require the high standards of performance needed for dealing with harsh winter conditions. All Rab® Down products are now RDS Certified (Responsible Down Standard). This ensures that our entire down supply chain can be traced so consumers can be confident that all down and feathers used in Rab® products adhere to the highest possible animal welfare and safety standards.

New Lightweight Synthetic Insulation

Rab Altus Vest

Cirrus™ synthetic insulation combines the warmth and weight benefits of down with the wet-weather performance of synthetics. Designed primarily for use in changeable unknown conditions, the Altus can be worn as an outer or mid-layer.

Rab Altus Jacket

With the introduction of Cirrus™ we have harnessed decades of down expertise to evolve a synthetic technology that offers a genuine alternative.

Rab Womens Nimbus Jacket

The Nimbus Jacket is a quick drying, featherless synthetic insulated jacket, using Cirrus™ insulation by 3M, designed as a technical all-rounder perfect for climbing and winter walking. Cirrus™ is a new, breakthrough insulation which combines almost all the key benefits of natural down and synthetic fillings, whilst avoiding their limitations.

3M Featherless Synthetic Insulation From The Global Leader In Synthetic Insulation

3M Thinsulate Featherless Insulation or Cirrus 'Powered by 3M' is breaking new ground in thermal insulation - warmth without the downsides. This 600 fill power material is a revolutionary, loose fill down alternative that mimics or surpasses the performance of natural down in fill power, loft and performance when wet. Made of durable, lightweight polyester fibres, 3M Thinsulate Featherless Insulation provides warmth without a single feather.

Rab have developed a range of new garments for Winter 2016 that utilise this exceptional material to provide highly insulative garments that perform consistently in any conditions.

Few companies invest more in research and development or bring more new products to market each year than 3M; count on them to continue broadening the 3M Thinsulate Insulation portfolio to keep you at the forefront of outerwear design.

3M design labs and testing facilities are among the best in the world - and they are available to help solve manufacturing challenges and build the best products possible.

3M Thinsulate Insulation is trusted for quality and performance. It has more than twice the brand recognition of any other product in its category, and is rated by consumers as the best overall brand of insulation.

Active Insulation - The All New Alpha Direct Jacket

Polartec® Alpha® was originally developed for the U.S. Special Forces when they required a more advanced insulating material in their combat uniforms. This fabric is a new technology with active insulation that regulates core body temperatures during both dynamic and static activities. This latest advancement in adaptable breathability helps eliminate the need of shedding or adding layers while on the move.

Using the latest generation of Alpha insulation Rab have refined their designs and created a highly insulating jacket that is even more breathable than ever before. Allowing you to work harder and still remain warm and comfortable.

Designed to be worn as an outer or mid-layer depending on the temperature, the Alpha Direct jacket adds exceptional versatility to your layering system. A tough and reliable Pertex® Microlight outer fabric secures the insulation and minimises wear. Key tech features include an under-helmet hood, two-way zipper and stretch fleece cuffs.

Polartec Alpha - How It Works

Polartec® Alpha® is a highly compressible fabric, easily layering with other materials and storable in small spaces.

A stable core of lofted knit fibers prevents fiber migration to keep a uniform consistency, even after heavy wear and repeated laundering. By keeping moisture vapor moving freely through the fabric it increases overall air exchange and drastically speeds up dry times. This reduces discomfort from saturation and prevents it from turning into a sponge.

Additional durable water repellency in the outer woven layers give Polartec® Alpha® the trusted ability to perform in the most challenging of environments.


Adjusting or completely shedding layers to release excess heat and moisture vapor is not always a viable option during activities.

Pit-zips and vents have traditionally helped to balance airflow and warmth in micro-climates, but they leave surface areas exposed to the elements in the process. Polartec® Alpha® is the first high performance fabric to materialize the concept of active insulation.

By placing patented low density fibers between air permeable woven layers we created a more efficient fabric for regulating warmth and transferring moisture. This advancement increases thermal adaptability in changing conditions and different phases of physical activity.