US Level 2 Underwear (Long Johns) - Olive Green - Helikon

US Level 2 Underwear (Long Johns) - Olive Green - Helikon

The Helikon US LVL 2 thermal pants are a high-performance base layer designed to protect against cold during outdoor activities. Thanks to their lightweight and stretchy material, they provide effective insulation while ensuring great freedom of movement.

Ideal thermal under-pants for cold climates

Designed for hikers, military personnel and outdoor enthusiasts, these leggings provide a first barrier against the cold. They retain body heat while avoiding compression effects, making them suitable for extended wear.

Stretchy and breathable fabric for extended comfort

Composed of 95% polyester and 5% elastane, these thermal pants offer an excellent balance between warmth, breathability and flexibility. They quickly wick away moisture, preventing sweat buildup and cold sensation.

Fitted cut compatible with all types of pants

Thanks to their close-fitting cut and thin fabric, they can be worn under any type of pants: cargo, softshell, or jeans. They create no bulk and remain discreet, even during movement.

Effective insulation without overheating during activity

Designed for dynamic activities in cold climates, these thermal leggings promote thermoregulation. They maintain warmth while avoiding overheating, whether during a hike, bivouac or extended mission.

Technical specifications