Thermal Underwear Top Undershirt Level 1 ECWCS Gen 3 Tan

A lightweight first-layer thermal shirt from the Extended Cold Weather Clothing System (ECWCS) developed for the US Armed Forces. It is designed to wick moisture, retain heat and provide maximum comfort during extended activity in cold conditions. This is an official military-issue item (USGI Issue) used by US Army soldiers as the base layer of the multi-layer ECWCS Generation 3 clothing system.

Features:

• Part of the multi-layer ECWCS Gen III clothing system
• Material: lightweight breathable synthetic Polartec Power Dry Silkweight
• Antimicrobial treatment
• Recommended for year-round use

Advantages:

• Unlike cotton, it does not absorb sweat and quickly wicks moisture away from the body
• Retains heat even during active movement
• Comfort: flat seams for wear under body armour and equipment
• Lightweight and breathable material that works as a true base layer
• Fast drying, 3–5 times faster than cotton
• Proven ECWCS Gen III system used by the US Army