Level 2 is a warm underwear for cold weather use. The fabric used warms the body, while wicks surplus humidity away, to other layers. Loose cut
Helikon-Tex Level 2 Generation III Thermal Underwear review
Underwear (full set) US LVL 2 Army shop - Zagreb - Hrvatska
Underwear (long johns) US LVL 1 - Helikon Tex
Helikon-Tex Chest Pack Numbat coyote
This is how Special Operations Forces layer clothes for 40°F to -50°F
Helikon-Tex Level 2 Generation III Thermal Underwear review
Red Hawk Tactical
Red Hawk Tactical
Helikon-Tex - Tactical & Combat Clothing - Helikon Tex
Helikon-Tex - Tactical & Combat Clothing - Helikon Tex