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Microlight Down Jacket disappears under a hardshell
The Microlight Down Jacket strips the platform down to its lightest build, trading a hood and a chest pocket for a leaner fit that disappears under a hardshell. Recycled 700 fill power down still fills a zoned micro and nano baffle construction, so the warmth-to-weight ratio holds even at this stripped-back weight. A Pertex® Quantum shell woven with NetPlus® fishing-net yarn keeps the whole piece packable enough to live in a pack until the temperature drops. Articulated sleeves and elasticated cuffs let it move freely under a bulkier outer layer without bunching.
What Our Gearhead® Experts Are Saying:
"I threw this on under my shell once the wind picked up on a ridge, and it added real warmth without making my arms feel stuffed inside two jackets. It packed back down small enough that I didn't think twice about carrying it on a day I wasn't sure I'd need it."
Details
- Lightweight down layering piece for shells and cold snaps
- 700FP hydrophobic down holds loft even when damp
- Zoned baffle construction optimizes warmth without bulk
- NetPlus® shell uses fully traceable recycled fishing nets
- Articulated sleeves move freely under an outer layer
- Packaway pocket with clip-in loop stows the jacket small
- Item #RABZ158
- Responsible Collection
- Recycled/Repurposed, Responsibly Sourced
- Material
- 20D x 30D Pertex Quantum (100% NetPlus recycled nylon, PFC-free DWR finish)
- Insulation
- 700-fill recycled down, Grangers hydrophobic finish
- Fill Weight
- 121g
- Fit
- regular
- Length
- hip
- Center Back Length
- 26in
- Pockets
- 2 zippered hand
- Claimed Weight
- 11.49oz
- Activity
- hiking, climbing, mountaineering, casual
- Manufacturer Warranty
- limited lifetime



Insulated
Lightweight insulation

Hydrophobic
Provides water resistance

Warm
Without excess weight
Microlight For Every Activity
Discover Microlight

Year-Round Use
Microlight jackets provide dependable warmth without unnecessary bulk

Trusted Mountain Materials
Materials like Pertex fabrics, recycled down, and hydrophobic down treatment balance warmth, freedom of movement, and low weight

Durable Protection
Pertex Quantum fabric helps balance durability, protection, and easy storage

Multi-Activity
Microlight collection offers options for hiking, climbing, trekking, mountaineering, and everyday outdoor use

Versatile
Packs down easily when not in use and provides across a wide range of outdoor activities
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We Are The Mountain People
Rab makes rugged, high-performance clothing and equipment that give you absolute protection, comfort, and freedom in the mountains.
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Frequently Asked Questions
How does the Rab Microlight Down Jacket - Women’s perform as a lightweight insulating layer?
Its 700-fill recycled down has a Grangers hydrophobic finish, with 121g (4.2oz) of insulation in size 10. Zoned micro- and nano-baffles help balance warmth and weight for hiking, camp, and belay stops.How much weather protection does the Rab Microlight Down Jacket’s shell provide?
The 20D × 30D Pertex Quantum shell is made from 100% NetPlus recycled nylon and has a PFC-free DWR finish for light water resistance. It is not waterproof, so wear a waterproof shell over it in sustained rain or wet snow.How should I choose a size in the Rab Microlight Down Jacket - Women’s?
The regular fit accommodates a baselayer or light fleece; sizing up gives more room for a thick midlayer. Choose by body measurements: the chart lists a 89cm (35in) chest for S/UK 10, rather than using height or weight alone.How light and long is the Rab Microlight Down Jacket in size 10?
Size 10 weighs 11.49oz (326g) and has a 26in (66cm) centre-back length. Its hip-length cut and lightweight insulation make it practical to carry for cool-weather stops and camp.What storage features does the Rab Microlight Down Jacket include for hiking and climbing?
The jacket has 2 zippered hand pockets, and its regular fit suits hiking, trekking, and use as a lightweight belay layer. At 326g in size 10, it is also easy to carry in a pack until needed.












