Skip to page content
Home » Men's » Clothing » Coats & Jackets » Insulated » Prism Men's Insulated Jacket

Delivery Country and Currency Selector

Please select your delivery country from the drop down below.

Please select your currency from the drop down below.

Update site with selected country and currency

We now ship to United Kingdom from £0.00

If you are not visiting from United Kingdom please select
your country from the drop down below.

Continue To GO Outdoors

Montane Prism Men's Insulated Jacket

Play the video
Moroccan Blue
Moroccan Blue
Moroccan Blue
Steel Grey
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
Fabric: Pertex Microlight Ripstop
Fill: 40
Fill Type: Primaloft Eco
Gender: Mens
Insulation Type: Synthetic
Lining: PEAQ 60W
Pockets: 2
Reflective: Yes
Waterproof: Water Resistant
Weight (g): 420

Reviews (66)

Sort By:

Add A Review

  • 2 out of 5
Not blown away., 11 December 2016
By Ian (Norfolk)
This is an ok jacket. I have found I have to really have to think about layering when wearing it.I have not been impressed by it's thermal quality for its size( compared to much thinner garments I have) and for the cost there are better jackets available. It is not a go to jacket for expeditions for me, more of dog walking in mid autumn. I like its pacability but as I said it doesn't come with me on expeditions so haven't needed to. The hood would fit a helmet well. The pokers fit hands with gloves well and the zippers have great tabs for use with gloves.

As I said an Ok jacket.

  • 5 out of 5
Montane Prism jacket, 23 November 2016
By A Chinese puzzle (Leicestershire)
As all previous reviewers. A very light and warm jacket.


  • 5 out of 5
Montane Prism jacket, 20 November 2016
By JR62 (Durham)
Excellent jacket- last week saw the first hard frosts of the year so the Prism was on for my walks. First impressions are it's extremely light and bulk free- due to this I was a little sceptical of how warn it would keep me! No need to have any concerns as at near zero degrees ,the walking was fine and I never felt cold all day. The old saying- if your feet are cold put what on- it with the Montane Prism, just pull up the hood which again is so light you forget it's up but it's more than effective for cold Wintery days All in all a superb product.

  • 5 out of 5
GO Staff Recommended Product, 15 November 2016
By Steve, GO Staff (Sheffield Head Office)
I bought the jacket for personal use and love it. Easy to slip on and off , very warm and dries so quickly. I love it.

Please note, this review was left by a team member from one of our stores.

  • 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.

prev 1 2 3 4 5 6 13 14 next

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



At GO Outdoors we offer a wide range of delivery options to suit your needs. You can come into one of our fantastic stores to collect or have your items delivered to you at your convenience.

Please see our delivery page for more information. Restrictions apply. Prices and delivery times may vary for remote or rural parts of the UK. Working days are Monday-Friday, excluding UK Bank Holidays.

Collect In-StoreCollect In-Store
Check stock and reserve items at your store for collection the same day. If the items are available for home delivery, then we can arrange to have them delivered to your local store for the following day

Free Delivery over £50 Free Delivery over £50
You've spent over £50, you qualify for free delivery

Next Day Delivery Next Day Delivery
Upgrade your order to next day! Order by 8pm and get your item delivered to you the next day.

Saturday Delivery Saturday Delivery
Order by 8pm Friday for delivery on Saturday (Not available for NI, Channel Islands or Highlands)

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

Delivery before 10:30amDelivery before 10:30am
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)

British Forces Post Office British Forces Post Office
Forces ONLY and cannot be used for civilian or business deliveries

International DeliveryInternational Delivery
International Delivery will take between 7 - 10 days and you are liable for any local duty and/or taxes


Returning an Item

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).

You can return your items by using Collect+ or by taking them to any GO Outdoors store (except Hathersage) using your delivery note as proof of purchase.

Unfortunately, orders paid for using PayPal cannot be returned to store and we are currently unable to offer free returns as we offer free delivery over £50 as standard.

See our returns policy for more information.