Weather Clothing System (ECWCS) is a layer-based apparel framework worn by the U.S. Army. Over the years there have been three iterations: ECWCS Generations I, II, and III.
Mountain/Cold Weather Clothing System - CIE Hub
ECWCS – McGuire Army Navy
Genuine US Military Issue NEW Gortex ECWCS GEN I (Extended Cold
Generation III Extended Cold Weather Clothing System - CIE Hub
This lightweight, universal camouflage pattern (ACU) Level 6 parka is genuine US military issue, made in the USA. The US Army Generation III Level 6
ECWCS Gen III Level 6 Extreme Cold/Wet Weather Parka — ACU, Small Long
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Extended Cold Weather Clothing System, Tactical Experts
ECWCS (Extended Cold Weather Clothing System), Generation III
Winter Wear – SPEC-OPS