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Thermal Underwear

U.S Style Gen III Grid Thermal Base Layer Top

MFH
Original price $26.00 - Original price $26.00
Original price
$26.00
$26.00 - $26.00
Current price $26.00

The U.S Style Gen III Grid Thermal Top is a base layer specifically designed for extreme cold weather conditions. Featuring highly breathable grid ...

View full details
Original price $26.00 - Original price $26.00
Original price
$26.00
$26.00 - $26.00
Current price $26.00
Sold out

Army Surplus Thermal Underwear for Sale

Stay warm and ready with our high-quality thermal underwear for sale. These mens thermal underwear provide a snug fit, making them an ideal base layer mens clothing for colder months. We also have a long johns men collection that will keep you toasty even in extreme weather conditions.

Our mens thermals are designed for superior heat retention, providing you with the comfort you need on the go. These are not just ordinary thermal clothes; each piece from our range of thermal base layers is engineered to maximize your body's natural heat and minimize moisture build-up, keeping you dry and comfortable throughout the day. Don't let the cold hinder your activities!

You can pair our thermal underwear with our Tactical hoodies, army socks and Scarves

FAQ

When are you getting more stock in?

Military surplus comes in bulk lots — we can’t choose sizes.

Smaller sizes are more common; larger ones are rare and sell out fast.

Restocks depend on military releases, so they can take time.

Use the stock alert button on the product page to get emailed when your size returns.

How are items graded

We sell both new and used military goods.

New items

All new stock is sourced from suppliers worldwide and arrives factory-new, usually in original packaging.

Used items

Used kit comes directly from military surplus and is graded as follows:

  • Super Grade — Unissued or unused condition. The item is like new, but may not include its original packaging.
  • Grade 1 — Previously issued and lightly used. Fully functional and ready for immediate use.
  • Grade 2 — Heavier signs of use. Still serviceable, but may have visible defects such as small rips, stains, or minor damage to zips or fastenings.
What are your UK delivery options

UK Mainland:

Standard Delivery (2-4 days) - £3.50

Express Delivery (1-2 days) - £4.50

FedEx Priority (1-2 days) - £4.99

Orders over 2kg must go on our FedEx Priority service.

What are your international delivery options?

We Ship World Wide 🌍

We use Royal Mail & UPS to ship internationally.

Fore full details on international shipping please visit our delivery page:

https://goarmy.co.uk/pages/delivery