British Army combat thermal undershirts

The British Army’s combat thermal undershirt is a key part of their Personal Clothing System (PCS), a lightweight, 100% polyester microfleece top in light olive or coyote, featuring a zip neck, thumbholes for warmth, and an extended back to stay tucked in under body armor, designed for quick-drying comfort and significant warmth in cold conditions with thumbholes in cuffs.. It’s essentially a modern replacement for older designs, providing excellent layering for active duty or outdoor enthusiasts.

Colour may vary between  Light Olive or Coyote