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Montane Prism Men's Insulated Jacket

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Steel Grey
Moroccan Blue
Moroccan Blue
Moroccan Blue
Discount Card Price
Retail Price £110.00

Collect In-Store
Collect In-Store
Available for Reserve & Collect
With your Discount Card

Home Delivery
Home Delivery
Available for Home Delivery

International Delivery
International Delivery
Available for International Delivery - For Selected Countries


Maximum warmth and comfort, with minimum weight for mountain use.

The MONTANE® Prism Jacket is extremely light and offers maximum warmth with minimum weight. Made from Pertex Microlight Rip-stop fabric, it's water repellent, windproof and breathable.

Using Primaloft Eco 40g insulation the body will be kept warm from the elements and as it is ultra light it is hassle free to store away in warmer conditions.

The reversed full front zip allows the body to be fully ventilated when it is warm and provides protection when it is cold.

The adjustable draw-cord hem and elasticated cuffs ensure a close fit to the body but give freedom of movement.

2 double insulated chest pockets and insulated hood with non-whip face aperture draw-cords keep the head and hands as protected as the body, and in dark conditions the 3M Scotchlite reflective flashes allow for visibility.

This highly breathable and insulated jacket is ideal for the active man who enjoys cold outdoor activities.

  • Lined with PEAQ 60w
  • Reversed full front zip  
  • 49 g/m² nylon 6.6 rip-stop woven
  • Warm when wet 
  • 2 double insulated chest pockets
  • Insulated hood
  • Stuffs into right hand pocket for easy storage - can even be used as a small sleeping pillow


Windproof: Wind Resistant
Zip Type: Full Zip
Cut: Casual / Standard
Fill: 40
Fill Type: Primaloft Eco
Gender: Mens
Insulation Type: Synthetic
Lining: PEAQ 60W
Outer Shell: Pertex Microlight Ripstop
Pockets: 2
Reflective: Yes
Waterproof: Water Resistant
Weight (g): 420

Reviews (62)

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  • 5 out of 5
Prism jacket rocks., 01 August 2016
By Jeffroq (North Wales)
One of the best bits of kit I own full stop. Very warm and light. Performs well in all conditions. I have used it in freezing weather over a base layer. Also under a shell in the rain. In the winter months I carried it with me across snowdonia and if the temp dropped or I stopped the prism came out and was on. Even in the rain this keeps you warm over your waterproofs so no need to take layers off to get this working. Two of my sons bought them after trying mine out. Stuffs away into the pocket and doubles as a lightweight pillow. Highly recommended. There are probably about 6 weeks if the year in the UK when this wouldn't be worth having in your pack.

  • 5 out of 5
Excellent!, 20 July 2016
By Holdfast1969 (Dornoch, Sutherland.)
Brilliant jacket great weight, great performance can't fault it other than an inside pocket might be useful. Im going to buy a second one whilst i still can!

  • 5 out of 5
Great Jacket, 08 June 2016
By Tom (Warrington)
A great, versatile jacket, that's lightweight yet still has an amazing heating capacity. Great for all situations, especially as it can be worn underneath water proofs. Definitely recommended.

  • 5 out of 5
Montane Prism Insulated Jacket, 01 May 2016
By Markus (Manchester)
Superb jacket, great fit and performance. Extremely well designed. Well done Montane!

  • 5 out of 5
Montane Prism Jacket, 24 April 2016
By I love the Peaks (Manchester)
I have had this Jacket for over 3 years now and can only speak well of this product. I have wore it in any kind of weather you care to mention and it's stood up to everything except very heavy rain which it claims is not waterproof. However it still keeps you toast when soaked. One minor point, be careful around sharp objects, thorns , Barbed wire. The fit is brilliant, the look is great and feels great to wear. This jacket has been extensively tested throughout the Peak District and Snowdonia and would not hesitate in recommending it to anyone wishing to purchase, I would defiantly consider buying another one without hesitation although feel it's going to be some time as it still looks great after three years of constant use. Please Montane don't think about discontinuing.

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Size Guide

This size chart should act as a guide only.

Men's Size Chart
Chest Size 36 38 40 42 44 46
Waist 28 30 32 34 36 38
Inside Leg (cm) 71 76 81 86 91 96
Inside Leg (Short) (cm) 71 72.5 74 75.5 77 78.5
Inside Leg (Long) (cm) 81 82.5 84 85.5 87 88.5

Men's Size Chart
Chest Size 92 97 102 107 112 117
Waist 71 76 81 86 91 96

Women's Size Chart
6 8 10 12 14 16
Chest Size 31-33 33-34 34-36 36-37 37-38 39-40
Waist 24-25 25-27 27-28 28-30 30-31 31-33
Hip 34-35 35-37 37-38 38-40 40-42 42-43
Inside Leg 29 30.5 31 32.5 33 34



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If you receive your order and it is not what you are expecting you can return it back to us within 30 days of receiving the goods for an exchange or refund (including the delivery charge if you return it within 14 days).

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