Built for changing conditions.
Shop HikingWill buy it again
"I am loving it! It fits very well, it has an athletic style and the fabric is quite soft. Great purchase!"
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A lightweight, go-anywhere performance tee designed for high-intensity movement using OTW® Omega Twist Spinning Technology, the MerinoFine™ Ace Short Sleeve Tee provides versatile comfort, efficiently managing moisture, drying quickly, naturally resisting odours, regulating temperature, and maintaining breathability
Good for:

100% Merino Wool, Exclusive Of Decoration
Machine Wash Cold (30°C), Delicate Cycle. Wash With Like Colors. Do Not Use Softeners. Fasten All Closures To Wash And Dry. Do Not Bleach. Do Not Tumble Dry. Line Dry In Shade. Cool Iron. Do Not Dry Clean.
Model measurements
Height: 186cm / 6'1". Waist: 81cm / 31". Vlad is wearing size M.
Key product measurements
Height: 69cm (Based on size M); Width: 51cm (bottom opening width, size M)
Fit
Slim
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Merino wool neutralizes unpleasant odors by absorbing odour molecules into its fibers, making them less detectable by the human nose.
Merino fibers efficiently manage moisture, absorbing it from your skin and releasing it into the atmosphere. It can absorb up to 35% of its weight in water without feeling wet.
icebreaker merino wool garments undergo special anti-shrinkage treatment, helping to resist deformation and pilling.
The thermo-regulation properties of merino wool adapt to your body and external conditions, so you can stay warm in the cold and cool in the heat.
Overall rating: 4.6363635 / 5 from 33 reviews.
This lightweight Men’s 150 MerinoFine™ Ace Short Sleeve T-Shirt is designed for high-intensity movement, efficiently managing moisture and drying quickly. Customers appreciate its breathable fabric and versatile comfort, making it ideal for various outdoor activities.
Review topics: ["fit","size","weight","shirt","quality","looks","wear","colour","fabric","weather","comfort","merino","buy","tee","wool","sweater"].
"I am loving it! It fits very well, it has an athletic style and the fabric is quite soft. Great purchase!"
— Erick (5/5)
"I really like the feel and comfort of the ultra fine merino. The fit is great. I like the lower mock collar. The polar is also wonderful to wear indoors when the winter temperatures head into the minus twenties and more."
— Jane B. (5/5)
"Perfect summer-to-fall shirt. Great fit and incredibly comfortable fabric. Definitely need to grab another one!"
— Nicholas D. (5/5)
"One of my favorite merino T-Shirts from Icebreaker. It has a great fit and never smells."
— KEMPER I. (5/5)
"Excellent shirt. My husband wears it regularly"
— Marcia B. (5/5)
"Both products have been great"
— Natalie M. (5/5)
"Great fit and comfort."
— Michael M. (5/5)
"Bought 2 of them for summer hiking/mtn biking. Have used Icebreaker shirts for years for baselayers or summer active wear, always before they were stable size, wash and dry no problem. Not these, went from a trim large to very snug medium in one washing!"
— Mikey (2/5)
"I'm shifting all my running gear to natural fibres and this is now my go-to for running. The lighter colour shows up sweat more than my older plastic running clothes but that's a small price to pay for 100% merino in a tee that works perfectly for long runs. The biggest concern is the sizing. It's a ""slim fit"" and they shrink after the first wash and so I had to size up to a M. I'm always a small (177cm, 36in chest, slim build, runner) but this is the only t-shirt that I've had to buy a medium in."
— San (5/5)
"The softer fabric is tangible to feel vs. other 100% 150 merino tees. The grey carries a blue hue. The fit is slightly tighter than regular tees. It is still comfortable to wear with the size I buy from Icebreaker."
— KS (5/5)
Use the chart below to determine your size. If you’re between two sizes, order the smaller size for a tighter fit or the larger size for a looser fit. If your measurements for chest and waist correspond to two different sizes, order the size indicated by your chest measurement for tops and your hip measurement for pants.
| S | M | L | XL | XXL | XXXL | |
|---|---|---|---|---|---|---|
| Neck | 13-14 | 14-15 | 15-16 | 16-17 | 17-18 | 18-19 |
| Chest | 33-36 | 36-39 | 39-42 | 42-45 | 45-48 | 48-52 |
| Arm length | 34 | 34-34.5 | 34.5 | 35 | 35.5 | 36 |
| S | M | L | XL | XXL | XXXL | |
|---|---|---|---|---|---|---|
| Neck | 34-36 | 36-38 | 38-41 | 41-43 | 43-46 | 46-49 |
| Chest | 83-91 | 91-99 | 99-107 | 107-115 | 115-123 | 123-133 |
| Arm length | 86.5-87 | 87-87.5 | 87.5-88 | 88-89 | 89-90 | 90-91 |
Our three different fits - slim, regular, and relaxed - ensure that when worn together, layers move and breathe like a single garment.
Find the size that fits you best based on people just like you.

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