Color: Black
Material: 100 % Polyester
Weight: 160 g
Brand: Helikon-Tex
Type / Function: Underware, Yoga pants, Cold protection
Model: UnderwearLongJohnUSLVL1
Sex: Men
Helikon-Tex Underwear Long John US LVL 1 Black
Item no.: SP-UN1-PO-01-BXX
Availability: Pick an option
€21.90
€17.52
with our BlackCard
incl. 19% VAT, plus Shipping costs
Shipping and return
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Description
Lightweight Base Layer for High-Activity Use
The US LVL 1 Thermal Long Johns from Helikon-Tex are designed as a functional first clothing layer for moderate to intense physical exertion. Made entirely from Quick Dry polyester, they efficiently wick excess moisture away from the body. Weighing just 160 g and with a fabric density of 130 g/m², they offer an ideal balance of lightness, moisture control, and comfort in tactical environments.
Material Structure – Breathable and Quick-Drying
The integrated Helikon-Tex Quick Dry knit structure ensures fast drying and keeps the skin comfortably dry – even during high-output activity or in warm, humid climates. The fabric is abrasion-resistant, easy to care for, and retains its shape even with frequent use. Flat seams reduce friction and help prevent skin irritation when worn for extended periods under load-bearing gear.
Thermoactive Function in Layered Systems
These long johns actively support body temperature regulation, retaining warmth during rest and dispersing heat during movement. They form a reliable foundation for modular cold-weather or shell systems. The close-fitting cut enhances moisture transport and ensures a secure fit without restricting movement.
Application and Practical Use
Ideal for marches, training, range use, or trekking – the US LVL 1 Long Johns are especially suited for use in moderate climates or as a base under insulating layers. They pack down small and deliver high functional value at minimal weight. Even during long hours in the field, they provide comfort and efficient moisture management.
- Weight: 160 g
- Material: 100% polyester
- Fabric weight: 130 g/m²
- Fabric: Helikon-Tex Quick Dry Knit
- Thermoactive: supports temperature regulation during activity and rest
- Moisture management: quickly wicks sweat, keeps skin dry
- Quick-drying: shortens drying time under high-stress conditions
- Seams: flat, low-friction seams for enhanced comfort
- Fit: close-fitting, ideal as a first layer in a layering system
- Use case: base layer underwear for tactical, sports, and outdoor applications
US LVL 1 vs. US LVL 2 – Which Thermal Pants Fit Your Mission?
Helikon-Tex offers two thermal pant variants – US LVL 1 and US LVL 2 – each tailored for specific climate zones and activity profiles:
- US LVL 1 is the preferred choice for warm to moderate climates and high-intensity movement. With a lighter fabric weight (130 g/m²) and superior moisture wicking, it excels during marches, field exercises, or as sun protection when worn as a standalone layer.
- US LVL 2 is engineered for cold to very cold conditions and lower activity phases. The heavier construction (220 g/m²) delivers solid insulation while maintaining breathability – making it ideal for winter bivouacs, guard duty, or alpine missions.
Both models are fully compatible with the Helikon-Tex layering system – the choice depends on temperature, activity level, and mission duration.
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Manufacturer information:Entire M sp. z o.o.
Email:
Radomska 34
54-032 Wrocław
Poland (PL)
Phone: +48 71 769 45 90
Web: www.helikon-tex.com
[email protected]
Responsible person:Entire M sp. z o.o.
Email:
Radomska 34
54-032 Wrocław
Poland (PL)
Phone: +48 71 769 45 90
Web: www.helikon-tex.com
[email protected]
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