OUR WARMEST THERMALS! You'll love these Genuine U.S. Military Issue Polypropylene Thermal Underwear. The US armed forces wear these as part of their Extended Cold Weather Clothing System(ECWCS). Heavy weight polypro thermal underwear is the thickest weight that we carry and has a nice smooth finish. These are thick, but lightweight and wick sweat and moisture. They dry extremely fast. Inside is a very soft polypropylene fleece that feels great next to the skin. Our customers range from skiers and snowboarders to couples heading out to tour Alaska and the Arctic. They are also great for hunting or any activity that requires sitting in the cold for long periods. They are available in the NEW Desert Sand and Black and in sizes ranging from adult X-small through adult 3X. We can offer price discounts for bulk orders. Please call for details. PLEASE NOTE: These are manufactured specifically for the military and are only available in mens sizes. However, they are such a great product that we do sell a lot of the to women. For women's sizing, please refer to the size chart below. These do run narrow. If there is any question about sizing, it is always safer to go to the next size up.
| Adult | XS | Sm | Med | Lrg | XL | 2X | 3X |
| Bottom-Waist | 26-28 | 30-32 | 34-36 | 38-40 | 42-44 | 46-48 | 50-52 |
| Top-Chest | 30-32 | 34-36 | 38-40 | 42-44 | 46-48 | 50-52 | 54-56 |
| Children Top | 14-16 | 18-20 | | | | | |
| Children Pant | 14-16 | 18-20 | | | | | |
***Please note that this is the same product as found on our Long Johns Page***