Arc'teryx Ionia Merino Wool Long-Sleeve Shirt - Men's
Light, soft and breathable, this Arc'teryx long-sleeve is perfect for hikes, runs and ski tours. Merino wool wicks away sweat and helps control odors. Plus, it's easy to layer in cold weather.
Key Details
- Made from merino wool, a material known for temperature regulation and odor resistance
- Moisture-wicking, breathable, versatile, air permeable and naturally odor resistant
- Merino fibers are wrapped around a nylon core for added durability
- Natural properties of merino wool provide thermal regulation and odor control
- Fitted for efficient fabric performance and easy layering
- Articulated patterning for unrestricted mobility
- Wool is sourced from humanely raised, non-mulesed sheep
- Wool in this product is 100% Responsible Wool Standard (RWS) certified
Imported.
View all Arc'teryx Men's T-Shirts| Best Use | Multisport |
|---|---|
| Shirt Type | T-shirt |
| Fabric | Merino/nylon jersey, 16.5 mn, 145 g/m2: 87% merino wool/13% nylon |
| Moisture Wicking | Yes |
| Sleeve Length | Long Sleeve |
| Hood | No |
| Gender | Men's |
| Weight | 6.7 ounces |
| Sustainability | Fair Trade Certified™ Factory Wool certified to the Responsible Wool Standard (RWS) |
| XXS | XS | S | M | L | XL | XXL | XXXL | XS Short | S Short | M Short | L Short | XL Short | XXL Short | S Tall | M Tall | L Tall | XL Tall | XXL Tall | 28 | 30 | 32 | 33 | 34 | 36 | 38 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chest | 33 | 35 | 37 | 40 | 43 | 47 | 51 | 54.5 | 35 | 37 | 40 | 43 | 47 | 51 | 37 | 40 | 43 | 47 | 51 | |||||||
| Sleeve Length | 30 | 31.5 | 32.5 | 34 | 35 | 36 | 37 | 38 | 32 | 33 | 34 | 35 | 36 | 37 | 33 | 34 | 35 | 36 | 37 | |||||||
| Waist | 27 | 29 | 31 | 34 | 37 | 40.5 | 44.5 | 48.5 | 29 | 31 | 34 | 37 | 40.5 | 44.5 | 31 | 34 | 37 | 40.5 | 44.5 | 30 | 32 | 34 | 35 | 36 | 38 | 40 |
| Hip | 32.5 | 34.5 | 36.5 | 39.5 | 42.5 | 46.5 | 50 | 54 | 34.5 | 36.5 | 39.5 | 42.5 | 46.5 | 50 | 36.5 | 39.5 | 42.5 | 46.5 | 50 | 35.5 | 37.5 | 39.5 | 40.5 | 41.5 | 43.5 | 45.5 |
| Inseam | 31 | 31 | 31.5 | 32 | 32.5 | 33 | 33 | 29 | 29.5 | 30 | 30.5 | 31 | 31 | 34.5 | 35 | 35.5 | 36 | 36 | 31.5 | 31.5 | 32 | 32 | 32 | 32.5 | 33 |
Sizing Notes
Measurements are stated in inches unless otherwise indicated.
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Don’t waste your money.
Don’t waste your money. After a couple months of normal wear and following the tag instructions for care the shirt has become stretched out to the point where the sleeves and hem and too long and the shirt it self is see thru. This shirt is the biggest waste of money I’ve made on a base layer, I do not expect this lack of quality from ArcTeryx. Honestly done with ArcTeryx after this product. Their quality has gone down hill over the past few years.
Hi Charlie. Thanks for taking the time to share your experience with the Iona Merino Wool Shirt LS. We’re sorry to hear about the fit and fabric concerns over time. If you haven’t already, we recommend submitting a Product Service Request form so our team can take a closer look. Your feedback is appreciated and has been shared with our product team: https://arcteryx.com/ca/en/help/product-service/service-request
Latest versions of this top are as GREAT!
Recently picked up the purple one in both the shirt and the hoody - was a bit worried about the quality and durability based on a couple of reviews - but as it turns out - the latest versions of this top are as GREAT as previous years. Super durable - fabric has a beautiful feel. I do find that these fit better in a L over a M (I have worn Med in Arcteryx for everything except Ionia and the Thorium ... which I select a Large - I'm 6'1" and 185 lbs). Would def recommend the Ionia if you are looking for something comfy and casual. Love how this shirt feels and breathes.
excellent active/base layer
Excellent base layer for active effort. I use this for outdoor and indoor climbing. It's thin enough that i don't overheat, and it's long enough that it reduces abrasions and keeps the bugs off. I always machine wash gentle and hang dry. Do this and it will last multiple seasons of hard wear in rotation. The longer cut means i can reach high without the shirt untucking from my harness, which i like. I am a midweight 5'9" and wear an XS—it's snug to my liking.
Perfect
I've had this T-shirt for three weeks. I am very satisfied, so I will buy more. I would like to ask you to expand your collection with a model with a button-down collar, a turtleneck, long-sleeved version and short-sleeved version, preferably in black :)
Nice Shirt, massive shrinkage and warp
Received this shirt as a Christmas gift. Wore it a handful of times and upon wash (following the care instructions) the shirt shrunk and warped to what feels like a whole size down. I hope it can be saved and restored with another wash and hang dry.
Hello Vince, thank you for sharing your feedback on the Ionia Merino Wool Shirt LS. We're sorry to hear about your experience with shrinkage and warping after washing, despite following the care instructions. Merino wool requires gentle handling, we recommend washing it again using cold water and hang it to dry, as this can help reshape the fibres. If you continue to have concerns, please don't hesitate to reach out to our Guest Services team for further assistance.
Very fragile material
The shirt fits well, looks good, and is very soft. With that being said, it is the most fragile shirt I have ever owned. Just wearing around the house and it has already developed a thread pull that looks terrible. It is as fragile as nylons.
Hello Matt, thank you for sharing your experience with the Ionia Merino Wool Shirt LS. We’re glad to hear that you enjoy the fit, look, and softness of the shirt. However, we're sorry to learn about the fabric’s fragility. Merino wool offers excellent comfort and breathability but can be more delicate compared to synthetic options. To help prevent pulls, we recommend gentle washing, storing it carefully, and avoiding rough surfaces that may snag the fabric. Your feedback is invaluable as we strive to improve!
Warm and comfortable
I have been using this crew neck almost exclusively as a base layer under a thin wind resistant running jacket, when running in colder conditions. I find it perfect for such use. It keeps me warm, even if sweating a lot.
Favorite Base layer
I wear this for running as a stand alone layer and as a base layer. I'm 5'9" 150lbs and went with a medium for a looser fit. No odor issues after several uses. I would love to see a lighter white/beige/natural color.
Nope
Get the Rho long sleeve instead of this. This one is way too long for me in XL at 6'3". The material is thinner too. Not worth it.
Hello there, thank you for your feedback on the Ionia Merino Wool Shirt LS. We're sorry to hear the fit and material didn't work well for you. We understand how important it is to find a shirt that fits comfortably and performs as expected. We appreciate your input, and it will be shared with our design team.
A great all round base layer
I use this as an all round base layer. It is light, soft and super comfortable to wear. Great for those multi day trips.