Rab Generator Alpine Jacket | First Look - Outdoors Magic

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Rab Generator Alpine Jacket | First Look

Featuring a NASA-developed Aerogel in its PrimaLoft Cross Core insulation, Rab's new Generator Alpine aims to deliver ‘tough and reliable lightweight warmth’ for winter mountain use

New for autumn/winter 2021, Rab has unveiled its Rab Generator Alpine Jacket – the brand’s  “warmest, lightest and most packable belay jacket” to date, one that’s designed to “excel when the elements are at their worst”.

It’s an item that should be ideal for Munro ascents in winter or time on the belay ledge, according to the Derbyshire-based outdoor company, and it’s billed as sitting at the “pinnacle” of the brand’s range of synthetic insulated layers.

The Rab Generator Alpine Jacket is insulated with PrimaLoft Cross Core technology, which fuses high performance PrimaLoft fibres with a revolutionary temperature-blocking technology known as Aerogel – a highly porous, lightweight structure originally developed by NASA scientists. Silica Aerogel is composed of more than 95% air and is regarded as the lightest solid material known to man. It’s also deemed to be a highly effective insulator. According to Rab’s marketing team, when this material is fused with PrimaLoft insulation fibres, the “highest level of lightweight warmth, only previously achieved by down, is reached”.

This technology was developed by PrimaLoft engineers, who found a way to integrate the Aerogel material into PrimaLoft’s fibres, allowing the firm to develop apparel insulation that “withstands the extreme challenges of outdoor garments” and “achieves both enhanced warmth and decreased weight” – a Holy Grail like win-win. The technology has been adopted by more than 50 brands, including Maloja, Mammut, Vaude, Dynafit, La Sportiva, Millet, Bergans, Haglöfs, Norröna, Montane, Rab, L.L.Bean, Sitka, Black Diamond, Patagonia and Strafe.

Rab uses a specific version of PrimaLoft Cross Core with 74% post-consumer recycled material (plastic bottles) and this has a distinctive accordion-like construction that supposedly enables “unending loft and quick compression recovery for long-lasting, lightweight warmth”.

The Generator Alpine Jacket weighs 525g and features zoned insulation, with 133gsm of PrimaLoft Cross Core on the body and sleeves for maximum warmth and 80gsm in the hood for improved mobility. The inner is a 15-denier Atmos material while the shell is a mix of Pertex Quantum Pro and Pertex Diamond Fuse, providing water and abrasion resistance. The helmet-compatible hood has a stiffened peak and two-way adjustment, and the oversized wrist cuffs with Velcro accommodate large gloves. You also get two internal stuff pockets, sleeve articulation for better dexterity and comfort, a two-way YKK central front zip with oversized puller, two YKK zipped hand pockets and a stuff sack. The jacket costs £250 and is available in aspen green and black.


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