Highly reviewed on
My Cart

Europe

GBP £
EUR €
EUR €
EUR €
EUR €
EUR €
EUR €
EUR €
EUR €
EUR €
EUR €
PLN zł
RUB ₽
SEK kr
DKK kr

North America

USD $
CAD $

Australasia

AUD $
NZD $
Search
Menu
Account
Fast Shipping 90-Day Returns Policy Secure Payments

Base Layers & Underwear

It's not only what is on the outside but also what's beneath that matter. Here at Military 1st, we are proud to provide our customers with a wide assortment of first-class base layers and comfortable tactical underwear that will keep them warm and dry in every situation, whether is it work or active times in the big outdoors. Our broad range of products includes simple men's boxer shorts, briefs and warm long bottoms, durable long and short-sleeved tops and underwear shirts, as well as top quality advanced thermal underwear sets, form such renowned brands as Helikon, Pentagon and thermal underwear specialist - Tervel.

Items 1-24 of 140

Page
per page
Sort By
Filter
  1. Quick View Highlander Thermal Vest Long Sleeve Olive
    Highlander Thermal Vest Long Sleeve Olive
    $26.95
  2. Quick View Helikon Gen III Level 1 Underwear Set Black
    Helikon Gen III Level 1 Underwear Set Black
    $66.95
  3. Quick View Tervel Optiline Running Shorts Black / Green
    Sale
    Tervel Optiline Running Shorts Black / Green
    Now $39.96 Was $49.95
  4. Quick View Tervel Optiline Shirt Short Sleeve Black/Grey
    Tervel Optiline Shirt Short Sleeve Black/Grey
    $55.95
  5. Quick View Highlander Men's Pro Comp Long Sleeve Top Black / Gray
    Highlander Men's Pro Comp Long Sleeve Top Black / Gray
    out of stock
  6. Quick View Brandit Boxer Shorts Logo 2 Pack Black / Black
    Brandit Boxer Shorts Logo 2 Pack Black / Black
    $39.95
  7. Quick View MFH US Undershirt Level I Gen III OD Green
    MFH US Undershirt Level I Gen III OD Green
    $34.95
  8. Quick View Tervel Comfortline Briefs Navy
    Tervel Comfortline Briefs Navy
    out of stock
  9. Quick View Tervel Optiline Digital Shirt Long Sleeve Military / Gray
    Tervel Optiline Digital Shirt Long Sleeve Military / Gray
    $55.95
  10. Quick View Tervel Comfortline Long Bottoms Military
    Tervel Comfortline Long Bottoms Military
    out of stock
  11. Quick View Tervel Optiline Light Shirt Short Sleeve Black/Light Grey
    Tervel Optiline Light Shirt Short Sleeve Black/Light Grey
    $53.95
  12. Quick View Mil-Tec Tactical Long Sleeve Quick Dry Shirt Dark Coyote
    Mil-Tec Tactical Long Sleeve Quick Dry Shirt Dark Coyote
    $41.95
  13. Quick View MFH US Underpants Level I Gen III OD Green
    MFH US Underpants Level I Gen III OD Green
    $37.95
  14. Quick View Condor Trident Battle Top Long Sleeve Black
    Condor Trident Battle Top Long Sleeve Black
    $87.95
  15. Quick View Brandit Boxershorts Swedish M90 Camo
    Brandit Boxershorts Swedish M90 Camo
    $26.95
  16. Quick View Tervel Comfortline Shirt Long Sleeve Blue
    Tervel Comfortline Shirt Long Sleeve Blue
    $58.95
  17. Quick View Tervel Comfortline Shorts Black
    Tervel Comfortline Shorts Black
    out of stock
  18. Quick View Helikon Gen III Level 2 Underwear Set Black
    Last Few
    Helikon Gen III Level 2 Underwear Set Black
    $94.95
  19. Quick View Tervel Optiline Light Tactical Shirt Short Sleeve Military / Gray
    Tervel Optiline Light Tactical Shirt Short Sleeve Military / Gray
    $49.95
  20. Quick View Tervel Optiline Running Leggings Black/Blue
    Last Few
    Tervel Optiline Running Leggings Black/Blue
    $58.95
  21. Quick View Viper Mesh-tech Armour Top Black
    Viper Mesh-tech Armour Top Black
    $29.95
  22. Quick View Brandit Boxer Shorts Dark Camo
    Brandit Boxer Shorts Dark Camo
    $26.95
  23. Quick View Pentagon Plexis Activity Shirt Black
    Last Few
    Pentagon Plexis Activity Shirt Black
    $68.95
  24. Quick View MFH US Undershirt Level I Gen III Coyote Tan
    MFH US Undershirt Level I Gen III Coyote Tan
    $34.95

Items 1-24 of 140

Page
per page
Sort By
Filter
Fast Shipping
90-Day Returns Policy
Filtering Results
Shopping Options
Size
  1. XS 16 items
  2. S 89 items
  3. M 140 items
  4. L 140 items
  5. XL 139 items
  6. XXL 122 items
  7. 3XL 44 items
  8. 4XL 7 items
  9. 5XL 7 items
  10. 6XL 1 item
  11. 7XL 1 item
Brand
  1. Brandit
  2. Condor
  3. Fox Outdoor
  4. Helikon
  5. Highlander
  6. Highlander Forces
  7. MFH
  8. Mil-Tec
  9. Pentagon
  10. Propper
  11. Tervel
  12. Viper
More
Color
  1. Black
  2. Blue
  3. Coyote
  4. Flecktarn
  5. Foliage
  6. Gray
  7. Khaki or Beige
  8. Navy Blue
  9. Olive
  10. PentaCamo
  11. Swedish M90 Camo
  12. Urban
  13. White
  14. Woodland
  15. Other
More
Price
  1. $0.00 - $99.99 138 items
  2. $100.00 and above 2 items
Availability
  1. In Stock 104 items