Icebreaker Merino 125 Cool-Lite Sphere III Long Sleeve Tee - Black, Size M

On a brisk morning trail run or a long day of travel, the Icebreaker Merino 125 Cool-Lite Sphere III Long Sleeve Tee keeps you comfortable without weighing you down. The Cool-Lite™ fabric blends 60% Merino wool with 40% TENCEL™ Lyocell to naturally regulate temperature, wick moisture, and resist odour, so you can wear it multiple times between washes. The regular fit and crew neck offer a classic look that works as a base layer or on its own.

Key specifications

• Material: 60% Merino Wool, 40% TENCEL™ Lyocell
• Fabric weight: 125 g/m²
• Fit: Regular
• Sleeve length: Long sleeve
• Neckline: Crew neck
• Gender: Men's
• Size: M
• Colour: Black
• Technology: Cool-Lite™
• Features: Breathable, odour-resistant, moisture-wicking, quick-drying, temperature regulating
• Sustainability: ZQ-certified Merino
• Best for: Hiking, everyday wear, travel
• Season: All-season
• Product line: Sphere III
• Approx. garment weight: 200 g (size M)

Why choose it

Merino wool naturally adapts to your body temperature, keeping you warm when it's cool and cool when it's warm. The addition of TENCEL™ Lyocell adds softness and enhances moisture management, while the odour-resistant properties mean you can pack less and do more. The lightweight 125 g/m² fabric feels barely there, yet provides reliable performance for active days.

Ideal use cases

• Hiking and backpacking in variable weather
• Travel and commuting when you need a versatile layer
• Everyday casual wear with a clean, understated look
• As a breathable base layer under a midlayer in cooler conditions

Good to know

The ZQ certification ensures the Merino wool comes from farms that meet high standards for animal welfare, environmental care, and social responsibility. Machine washable for easy care, this tee is built to last through countless adventures.