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  • Alpha Flux Jacket

Representing the pinnacle of lightweight, breathable insulation, the Alpha Flux is part of a New Breed of mountain clothing being developed here at Rab.

The Alpha Flux combines a protective, woven shell with zoned insulation to create the perfect outer layer for warmer conditions and a fast wicking mid-layer when the weather closes in. To reduce bulk and allow exceptional freedom of movement we have used a combination of Polartec’s warm and breathable Alpha® with side panels, cuffs and thumb loops in our lightweight, stretchy Thermic Lux fleece.

Weighing in at just 330g the Alpha Flux represents the perfect all-rounder for the widest range of mountain pursuits.

To keep the weight down we have kept the Alpha flux simple, focusing on the details that matter such as internal storm flap, chin guard, thumb loops, Polygiene odour control and under-helmet hood.

Polartec® Alpha™ “Direct” 90 Insulation

Stretch Fleece Wrist Cuffs

YYK® Front Zip / Internal Storm Flap / Chin Guard

2 Way YYK® Zipped Hand Pockets

Quick Drying

Superior Breathability

Super Lightweight

Polartec® Alpha® is the latest evolution of synthetic insulation offering a rare combination of lightweight warmth and true breathability in a “puffy” style garment. Because Polartec® Alpha® insulation is highly durable and more stable than other synthetic insulation products, more open-construction woven face and back fabrics can be selected to create an air permeable package. This small amount of airflow rapidly draws moisture away from the body and allows Polartec® Alpha® to be worn in a wider range of activities compared to classic “vapor barrier” style insulation.


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