Helikon Level I underwear longsleeve, designed to be worn next to the skin and representing the first level of Generation III Extended Cold Weather Clothing System (GEN III ECWCS).
It is a lightweight and fast-drying underwear set, which retains body heat in cold weather and provides a cooling effect in high temperatures. Special lightweight polyester moisture-wicking weave increases the evaporation area.
The long sleeve top has a longer, contoured back and thumbholes in the sleeves, which facilitates putting on multiple layers of clothing.
Features:
| Long Sleeve | ||||
| Size | T-shirt circumference under the arms [cm] | Total length at the front [cm] | Sleeve length from armpit [cm] | |
| XS | 90 | 62 | 52 | |
| S | 94 | 62 | 53 | |
| M | 98 | 64 | 56 | |
| L | 104 | 68 | 59 | |
| XL | 110 | 70 | 61 | |
| XXL | 114 | 72 | 63 | |
| 3XL | 120 | 75 | 65 | |
