Montane Prism Jacket - Women's


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  • Rhubarb Red
  • Antarctic Blue
  • Black

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Prism is an essential piece of mountain clothing whatever the activity! Warm even when wet.      


The most versatile piece of insulation in the MONTANE® range, the Prism is an essential piece of mountain clothing whatever the activity. Using 40g PRIMALOFT® insulation throughout ensures that the Prism is warm yet lightweight enough to be worn on the move in cool conditions. Used and abused by Mountain Rescue teams across the UK and Adventure Teams in New Zealand  the Prism can be worn as a mid-layer within any shell system or alone as an outer jacket in drier weather.

Fabric: PERTEX® Microlight Mini Rip-stop
Lining: PEAQ Synthetic
Zips: YKK reverse coil semi-auto
Black / Icicle lining / Black zips - NEW
Rhubarb / Steel lining / Rhubarb zips
Antarctic Blue / Pink Zips
Weight (approx.): 388g  (UK 12)
Sizes: 8, 10, 12, 14, 16 (UK Sizes)
Fit: Active Mountain
Activities: Fast Alpine / Rock Climbing / Mountain Walking / High Trekking / Backpacking / Mountain Marathon / Biking / Travel


PERTEX® Microlight Mini Rip-stop outer fabric that is completely windproof, fast drying and features an exceptional durable water repellency
40g PRIMALOFT® SILVER ECO insulation throughout the body that is warm, packable and exceptionally fast drying
40g PRIMALOFT® SILVER ECO in front of and behind the hand-warmer pockets, giving this area 80g of insulation in total
Articulated arms for reach high movement and tailored specifically to reduce hem lift
Fully adjustable helmet compatible mountain hood with three point adjustment and wired peak
Internal elastic loop and hook on rear hood compression drawcord allows hood to be rolled down and stowed away whilst not in use in windy conditions
Two hand-warmer pockets positioned well clear of backpack or climbing harness belt
Full length, reversed and baffled YKK front zip
Fine microfleece on inner collar next to chin for extra comfort
Low bulk stretch bound cuffs which can be pulled up forearms to aid cooling
Adjustable hem to prevent spindrift entry and heat loss
Reflective details for mountain safety
Stuffs into right hand pocket for easy storage and use as a small sleeping pillow



133g/m², 100g/m², 60g/m², 40g/m² performance synthetic mid-loft insulation
Warm when wet and fast drying
Wind resistant and water repellent
Compresses like down
Fibres produced from post-consumer and post-industrial plastic waste
Minimum of 50% recycled content

PERTEX® Microlight Rip-stop

53g/m² 100% Polyamide rip-stop weave
Air permeability 1.0cc max (JIS L 1096 / ASTM D737)
Spray rating 80 / 20 (JIS L 1092)
Abrasion resistance 40,000+ at 12.5k PA (BS EN ISO 12947-2)

PEAQ Synthetic

56g/m² ultra soft nylon plain weave
Exceptional comfort next to skin
Highly breathable and fast drying


The Prism Jacket uses PERTEX® fabric contains a Durable Water Repellency (DWR) as the first barrier to keeping you dry. Clean your garment in order to maintain this.
Machine wash in warm water at 30'C/86'F with a mild detergent. MONTANE® recommends that you use Nikwax Tech Wash.
Do not use fabric softeners or bleach.
Drip dry.
Your jacket may need occasional re-proofing to restore the DWR. MONTANE® recommend Nikwax TX Direct.
Please see for more information.