带有纽扣，可单独穿着而不必安装到夹克或裤子里。这两件保暖内衬是 ECWCS 一代系统的组成部分。
夹克内衬
仓储号参考：
Liner, Cold Weather Coat
指派日期：未知
| 尺码 | NSN |
|---|---|
| X-Small | 8415-00-782-2886 |
| Small | 8415-00-782-2887 |
| Medium | 8415-00-782-2888 |
| Large | 8415-00-782-2889 |
| X-Large | 8415-00-782-2890 |
 |
 |
裤子内衬
仓储号参考：
Liner, Cold Weather Trousers, Field
指派日期：1984-05-24
| 尺码 | NSN |
|---|---|
| X-Small Short/Regular | 8415-01-180-0370 |
| Small Short/Regular | 8415-01-180-0371 |
| Small Long | 8415-01-180-0372 |
| Medium Short/Regular | 8415-01-180-0373 |
| Medium Long | 8415-01-180-0374 |
| Large Short/Regular | 8415-01-180-0375 |
| Large Long | 8415-01-180-0376 |
| X-Large Short/Regular | 8415-01-180-0377 |
