Brubeck Ranger Wool Men's Thermoactive Long Sleeve Base Layer Khaki Size L

Most thermal underwear traps heat but leaves you clammy; the Brubeck Ranger Wool base layer uses a seamless two-layer construction to balance warmth, breathability, and next-to-skin comfort. Merino wool on the inside regulates temperature naturally, while the outer polyamide layer shrugs off abrasion from packs and outerwear. The result is a long sleeve shirt that works as hard as you do, from alpine ascents to cold-weather commutes.

Highlights

• Seamless BRUBECK® BTP LITE technology eliminates chafing and pressure points for all-day comfort.
• Two-layer fabric structure: inner Merino wool layer for warmth and outer polyamide layer for abrasion resistance.
• Naturally thermoregulating, moisture-wicking, and quick-drying to keep skin dry and comfortable.
• Bacteriostatic and anti-allergic properties reduce odor buildup and suit sensitive skin.
• Ergonomic, close-fitting cut provides unrestricted movement and easy layering.
• Versatile design ideal for hiking, trekking, skiing, cycling, and everyday cold-weather wear.

In daily use

Whether you're tackling a mountain trail or commuting on a chilly morning, the Ranger Wool base layer works as your second skin. The round neck and long sleeves offer full coverage, while the flat seams and seamless zones prevent irritation under backpacks or outer layers. Merino wool actively regulates temperature, so you stay warm during rest stops and cool during intense climbs. The fabric's natural elasticity ensures a snug yet flexible fit that moves with you.

Full specifications

• Product Type: Thermoactive Base Layer
• Garment Type: Long Sleeve Shirt
• Material Composition: 55% Merino Wool, 45% Polyamide
• Fabric Technology: Seamless BRUBECK® BTP LITE
• Layer Construction: Two-layer
• Thermal Properties: Thermoregulating
• Moisture Management: Moisture-wicking, Quick-drying
• Breathability: High
• Odor Resistance: Bacteriostatic
• Allergenic Properties: Anti-allergic, Non-irritating
• Fit Type: Ergonomic, Close-fitting
• Intended Use: All-season outdoor activities (hiking, trekking, skiing, cycling)
• Gender: Men's
• Color: Khaki
• Size: L
• Neckline: Round Neck
• Sleeve Length: Long Sleeve
• Care Instructions: Machine washable (30°C, wool cycle recommended)

Final note

The Brubeck Ranger Wool base layer delivers the natural performance of Merino wool with the durability of polyamide, making it a reliable foundation for any cold-weather activity.