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British Army FR Thermal Long Johns

Sold out
Original price $10.00 - Original price $10.00
Original price
$10.00 - $10.00
Current price $10.00

British Army Thermal Fire Resistant Olive Long Johns
Standard issue British army stretchy long johns in olive green. These are the newer, more recent long john trousers made from a fire resistant material with the micro fleece inner lining and polyester type outer for anti-sweat properties. 

A good thermal base layer to be worn underneath trousers. This will keep out cold with ease. Fits to the skin and are a thin layer, making it easier to put something over.

Features Include:

  • Genuine military issue
  • Warm underlayer bottoms
  • Elasticated waist
  • Elasticated leg openings
  • Fire resistant 
  • Excellent Condition

Waist size:

Small: 30in

Medium: 32in

Large: 34in

XL: 36in

XXL: 38in

Size Guide

SizeWaist (Inches)

United Kingdom 

Under 2kg:
Standard Delivery (2-4 days) - £3.50
Express Delivery (1-2 days) - £4.50
Next Day - £4.99

Over 2kg:
Next Day - £4.99

Saturday Delivery:
Saturday Delivery - £6.99
Saturday Before 1pm - £9.99

Rest of the world
UPS or Fed-Ex - Calculated on checkout 

Next Day Delivery
Orders must be made before 1pm for next day delivery.
Orders made after 1pm on Thursday will arrive on Monday (unless Saturday delivery chosen)
Orders made after 1pm on Friday will be shipped on Monday. 

For more information on shipping please see our shipping policy HERE


To obtain a return label if you live on the UK mainland please CLICK HERE. If you are unable to generate a returns label please email us at Please check your spam folder for replies from us. 

If returning an item for a refund we charge £3 for the return label which is taken from the refund amount. 

If you want to exchange your order please send the item/items back for a refund and make a new order for the items you would like

We accept returns / exchanges from 30 days of the order date. Items must be in original condition to be accepted for returns. A refund is given within 1-2 days of receiving the returned item. 

International order must arrange thier own return postage which is non-refundable. 

Mailing Bags

  • Small items - Paper mailing bags
  • Larger items - Biodegradable sugarcane bags 
  • Very large items - Cardboard boxes

Packing Tape

  • Small items - Gum tape / Kraft Tape (biodegradable)
  • Larger items - Kraft Tape (biodegradable)

If you buy any of our army surplus products then all the packaging will be plastic free. With army surplus you minimise the environmental impact of producing new clothes and reduce plastic waste. 

With our new items there may be plastic packing which comes from the supplier themselves. 

Although we are not totally plastic free (but pretty close) our goal is to reduce our plastic waste as much as possible and will continue to do so going into the future.

Customer Reviews

Based on 10 reviews

Always had a prompt and reliable service

Great Service (again)

Good price. Prompt despatch. Quick delivery. Thank you.

Great gear great price

Really comfortable and warm - great value

Mr Ayob Ali

Very fast delivery and amazing quality gear as always from goarmy, purchased the hole set of thermal underwear and it's kept me very warm down to -4 and I was very comfortable.


Bought these as I was notified about the sale, and due to the cold weather I thought it would be great to get some good quality long johns! These don't disappoint, they're thick and warm and are extremely comfortable! My only gripe is that they don't have pockets, but that's just not a thing you'd expect with long johns anyway so it's not an issue!