Millet Trilogy Wool TS LS Technical Base Layer - Icon Blue, Men's M

Where most technical base layers rely purely on synthetic fibres, the Millet Trilogy Wool TS LS fuses 50% merino wool with 50% polyester to balance natural thermoregulation with durable, quick-drying performance. This long-sleeve crew is built for high-output alpine days—climbing, ski touring, or trekking—where moisture control and odour resistance matter as much as warmth. The TRILOGY WOOL BLEND™ fabric offers mechanical stretch and flatlock seams for chafe-free layering under a shell or midlayer.

Highlights

• TRILOGY WOOL BLEND™: 50% merino wool, 50% polyester for warmth, breathability, and durability.
• Natural anti-odour and moisture-wicking properties keep you fresh during multi-day missions.
• Active fit with mechanical stretch moves with you on technical terrain.
• Flatlock seams eliminate irritation when worn under a pack or harness.
• All-season layering piece: works as a standalone in mild conditions or as a base in deep cold.

In daily use

Pull on the Trilogy Wool TS LS and you immediately notice the soft, non-itchy merino against the skin. During a steep skin track or a long rock route, the fabric manages sweat efficiently—polyester accelerates drying while wool buffers temperature swings. The crew neck sits comfortably under a helmet or collar, and the long sleeves stay put without restricting reach. After a week of use, the natural anti-odour treatment means fewer washes and less funk. It layers cleanly under a softshell or insulated jacket, adding warmth without bulk.

Full specifications

• Material: 50% Merino Wool, 50% Polyester (TRILOGY WOOL BLEND™)
• Fit: Active Fit
• Neckline: Crew Neck
• Sleeve Length: Long Sleeve
• Seams: Flatlock construction
• Odour Resistance: Natural anti-odour (merino wool)
• Moisture Wicking: Yes
• Breathability: High
• Thermal Regulation: Natural thermoregulation
• Quick Drying: Yes
• Stretch: Mechanical stretch
• Intended Use: Alpinism, Climbing, Ski Touring, Trekking
• Collection: Trilogy Series
• Season: All-season (layering)
• Gender: Men's
• Size: M
• Colour: Icon Blue

Final note

For alpinists and backcountry athletes who demand a base layer that works as hard as they do, the Millet Trilogy Wool TS LS delivers merino comfort with synthetic resilience—no compromises.