Parka and Trousers (Marine Corps)
![](/clothing/CW/ECWCS/GEN2/Layer4MC_entries.jpg)
The 2nd generation parka and trousers incorporates features requested by Marines. Improvements over the original parka and trousers include a two-way entry pocket design, water channels to protect critical area from potential leakage, removal of the taffeta nylon lining to reduce cost, improved breathability, a roll and stow hood, and a Cordura nylon reinforcement of the elbow and knee areas to improve durability.
Parka and Trousers (Army)
![](/clothing/CW/ECWCS/GEN2/Layer4UCP_entries.jpg)
The parka and trousers replace the original parka and trousers in the Army.
Synthetic Fleece Shirt and Overalls
![](/clothing/CW/ECWCS/GEN2/SyntheticFleeceSuit_entries.jpg)
The shirt and overalls replace polyester fiberpile shirt and bib overall.
Lightweight Cold Weather Underwear Set
![](/clothing/CW/ECWCS/GEN2/UnderwearSetLWCW_entries.png)
Lightweight Cold Weather Underwear Set (LWCWUS) was developed to provide a moisture wicking, heat retentive, lightweight garment for moderate conditions not sufficiently cold for the polypropylene underwear.