US Military ECWCS Black Silkweight Layer 1 Undershirt Size:Medium Regular • Pattern: Foliage Green (Color

• Pattern: Foliage Green (Color Code 504)• Material: Flame-resistant nylon shell with insulated batting• Function: Thermal liner providing insulation and fire resistance in subzero environments• Compatibility or Design: Designed for use with ECWCS and FREE system outer garments

It is designed for physical training and general duty wear

• Function: Warm-weather uniform wear

Air Force personnel as part of the standard flyer’s protective clothing system for intermediate cold conditions

US Military ECWCS Black Silkweight Layer 1 Undershirt Size:Medium Regular • Pattern: Foliage Green (ColorThe US Military ECWCS black silkweight Layer 1 undershirt is a lightweight base layer shirt designed as part of the Extended Cold Weather Clothing System (ECWCS). It is worn next to the skin to manage moisture and provide comfort in cold weather. Color: Black Material: Polyester silkweight knit (varies by contract) Function: Lightweight base layer for moisture control and cold weather wear Issued to U. S. military personnel as part of the ECWCS cold