Sous-vêtements (caleçons longs) us niveau 1 - Vert olive - Helikon

US Level 1 Underwear (Long Johns) - Olive Green - Helikon

The Helikon US LVL 1 thermal legging is designed as a breathable first layer for intense activities in moderately cold environments. Lightweight and technical, it optimizes moisture management while ensuring lasting comfort.

Lightweight thermal underwear for prolonged efforts

Ideal for hiking, bivouacs, or tactical activities, these leggings prevent heat loss while remaining discreet under pants. They offer basic protection against cold without thermal overload.

Quick Dry knit: breathable and fast-drying

Made from 100% Helikon-Tex® Quick Dry polyester, it effectively wicks away body moisture. Even during sustained effort, it keeps skin dry and prevents post-activity cooling effect.

Flat seams to prevent chafing

Flat seams minimize irritation, even during prolonged wear or under a loaded pack. This detail makes the garment more comfortable to wear in direct contact with the skin.

Ideal as a first layer in cool weather

Versatile, it can be used in both temperate and moderately cold weather. Its lightness allows it to be worn without constraint under hiking pants, fatigues, or tactical gear.

Technical specifications