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Out of stock - Rab Women's Alpha Flux Jacket

Out of stock

A highly breathable and extremely lightweight insulated jacket for active multi-season use.

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Product code: 15903943 / 322729

A highly breathable and extremely lightweight insulated jacket for active multi-season use.

Rab's Alpha Flux Jacket really excels when it comes to keeping you warm and comfortable whilst active, whether worn as an outer layer during the milder months or as a midlayer through the colder seasons.

It effectively blends lightweight Polartec® Alpha™ insulation, that provides both warmth and protection, with stretch fleece panels for a complete range of movement that won't slow you down, even when wet.

The hood can be worn under your helmet, making this a great choice for climbers and even cyclists, while the Polygiene® STAY FRESH panels will help to keep the jacket fresh during multi-day use.

  • Polartec® Alpha™ "Direct" 90 insulation
  • Under helmet hood
  • YKK front zip, internal storm flap, chin guard
  • 2 x YKK zipped hand pockets
  • Stretch fleece side panels, cuffs and thumb loops with Polygiene® STAY FRESH odour control treatment
  • Weight: 280g (9.9oz)
Active / Performance
Polartec Alpha
Breathable, Insulated, Packable, Water Resistant, Wind Resistant
Full Zip
Fixed, Helmet Compatible

This product qualifies for the following delivery methods

Standard Delivery (7-10 Days) (FREE)


Once despatched you will receive updates from the courier.

Premium Express Delivery (2 working days) (£6.95)


Premium Express delivery takes 2 working days, order by 4pm. Once despatched you will receive updates from the courier.

Reserve and Collect (within an hour) (FREE)


We will notify you when your order is ready to collect.

Click and Collect (7-10 Days) (FREE)


You will be notified when your order is ready to collect.

AM Delivery (£7.95)


Order by 8pm and get your item delivered to you by 12pm the next working day (Not available for NI, Channel Islands or Highlands)

Bike Delivery (£4.95)


Bike delivery is £4.95. This applies to all bikes, and these orders are upgraded to a DHL courier service.

British Forces Post Office (BFPO) (FREE)


Forces ONLY and cannot be used for civilian or business deliveries

Delivery before 10:30am (£8.95)


Order by 8pm and get your item delivered to you by 10:30am the next working day (Not available for NI, Channel Islands or Highlands) Excludes Bank Holidays.

Saturday Delivery (order by 6pm Friday) (£5.95)


Next Day Delivery (order by 6pm Mon - Fri) (£2.95)


Delivered by UK Mail. Remote areas may take longer, please click here for more info.

Click and Collect Next Day (order by 6pm Mon - Fri) (£2.95)



Returning orders to us is easy. Whatever your reason, we offer a refund or exchange within 28 days of delivery or collection.

8 33" 27" 27" 35"
10 35" 28" 27" 37"
12 37" 30" 28" 39"
14 39" 32" 29" 41"
16 41" 34" 30" 43"
18 43" 36" 30" 45"
8 84 cm 69 cm 70 cm 89 cm
10 89 cm 72 cm 70 cm 94 cm
12 94 cm 76 cm 72 cm 99 cm
14 99 cm 81 cm 74 cm 104 cm
16 104 cm 86 cm 76 cm 109 cm
18 109 cm 91 cm 76 cm 114 cm
Short 28"
Regular 30"
Long 32"
Short 71 cm
Regular 76 cm
Long 81 cm

Women's Rab Clothing Size Guide

Measuring tips

Take your actual body measurements as they are more accurate than measuring over your clothes or shoes.

CHEST: Measure around the fullest part of your chest, making sure to keep the tape under the arms and around your shoulder blades.

WAIST: Measure around the smallest part of your waist (natural waistline).

HIPS: Stand with your heels together and measure around the fullest part.

INSIDE LEG: Measure from the top of your inner leg, along the inside seam to the bottom of your leg.

Ratings & Reviews

Overall Rating

4.44 out of 5
9 reviews
Write a review
4.44 out of 5


Very commfortable and warm , fits well .

4.44 out of 5


After one day's walk the jacket was damaged on the pockets. It appears that the waist strap on my day pack rubbed the surface of the jacket. For a RAB product I was very surprised, I have at least four other RAB jackets which have stood years wear and tear!
Thankfully Go Outdoors were very understanding and offered a replacement or a refund. In view of my dissatisfaction with the product I decided to go for a refund.
So far RAB have no responded to my product complaint - another disappointment.

4.44 out of 5


I spent all year wanting this jacket as its the only one on the market that genuinely fits my small frame well without engulfing me. However after 3/4 wears it has bobbled significantly and it gets a tuck/pull really easily. Whilst it is a lovely warm mid layer, and i am glad to have it, id of expected it to last more than a month without looking as if ive had it years.

4.44 out of 5

Rab Alpha Flux Jacket

Really Pleased with this product, it is very lightweight, stretchy and fits superbly. To say how light it is it is incredibly warm but Has enough flexibility for any movement. Lovely piece of kit and very pleased at the purchase and the speedy delivery of the product. Would thoroughly recommend it.

4.44 out of 5

Great product

Excellent warm and comfortable for everyday use

4.44 out of 5

Quality windproof mid layer

I love this jacket, it's really warm and much lighter than a fleece. It fits well and looks good, would definitely recommend for use all year round.

4.44 out of 5


Such a comfortable and well fitting jacket. Very cosy and good quality. I am very pleased with my purchase

4.44 out of 5

Unquestionably best windproof jacket ever!

Why is it that when you are not looking you find exactly the right item? This jacket is so comfortable and well fitting that I have discarded every other fleece and jacket and opted to wear this one. I hate the wind ripping through when out walking, but now I don't have to worry about it. If you can only buy one windproof this is it!

4.44 out of 5


Just love this, I have worn it everyday. It's light, warm & brilliant for layering, fits well.

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