What makes Genuine U.S. Military-Issued Polypropylene Thermals so great:
- It resists fading and continues to look good, even in chlorinated climates.
- The unique properties of polypropylene moves moisture away from the skin, keeping you dry.
- Polypropylene has the lowest thermal conductivity of any traditional apparel fiber
|
| Thermal Conductivity
|
| Polypropylene |
6 |
| Silk |
7 |
| Polyester |
7.3 |
| Wool |
8 |
| Acrylic |
8 |
| Nylon |
10 |
| Cotton |
17.5 |
|