MerinoFine™ Ace Tee: The Smarter, Natural Choice for Performance & Everyday Wear
August, 2025 | icebreaker
When it comes to performance wear, synthetic fabrics have long dominated the market—but icebreaker’s MerinoFine™ Ace Tee proves nature can outsmart science. Crafted from 17.5-micron ultra-fine merino wool, constructed with movement in mind and designed for high-intensity movement using OTW® Omega Twist Spinning Technology, the 150 MerinoFine™ Ace Short Sleeve Tee is designed for those who demand both comfort and durability, without compromising sustainability.
Superior Moisture Management: Stay Dry, Naturally
Unlike synthetic fabrics that trap sweat, the MerinoFine™ Ace Tee leverages wool’s natural properties to:
● Wick moisture away from the skin.
● Transport sweat through the fabric for rapid evaporation.
● Diffuse moisture across a larger surface area to keep you dry.
Ideal for: High-intensity workouts, hiking, or humid climates where breathability is key.
OTW® Technology: Built to Last
Developed exclusively for icebreaker by Sudwolle, this innovation combines 17.5-micron fibres with a tighter yarn structure to:
● Reduce pilling and fuzz (common in traditional wool).
● Enhance stretch and elasticity for freedom of movement.
● Boost durability without sacrificing softness.
Fun fact: 17.5-micron wool strikes the perfect balance—softer than 18.9-micron yet more cost-effective than 15.5-micron.

Designed for Everyday Luxury
While the MerinoFine™ Ace Tee excels in performance scenarios, its thoughtful design makes it equally suited for everyday wear. The tee's flatlock seams eliminate chafing and irritation, while the precision ribbed collar maintains its shape wear after wear. What truly sets it apart is merino wool's natural properties - the ultra-fine 17.5 micron fibers provide a luxuriously smooth feel against skin with zero itchiness, putting to rest any preconceptions about wool being uncomfortable.
Its natural odour resistance means you can wear it from morning coffee to evening workouts without worrying about lingering smells. Whether you're layering it under a jacket for urban adventures or wearing it solo for a polished casual look, the Ace Tee transitions seamlessly between contexts, proving that technical fabrics don't have to sacrifice style for functionality.
Merino Wool vs. Synthetics: The Clear Winner
Feature | MerinoFine™ Ace Tee | Synthetic Tee |
Moisture Control | Natural wicking | Traps sweat |
Odour Resistance | Antibacterial | Holds smells |
Durability | OTW® reinforced | Prone to pilling |
How to Style Your MerinoFine™ Tee
● For the Trail: Pair with icebreaker’s ZoneKnit™ Merino Blend Shorts for a full-natural kit.
● For the City: Layer under a blazer for a sustainable smart-casual look.
● For Travel: Pack light—it resists wrinkles and odours for days.
Join the Move to Natural
The MerinoFine™ Ace Tee is proof that performance wear doesn’t need plastics. Shop now and experience the difference of 100% natural fibres.
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