High-Performance Australian Merino Wool Clothing for Running

G’day! This is the bit most people don’t even read because they usually just go straight to the pictures, and why wouldn’t you? You’re a runner. You’re in a hurry. Reading is like stopping to do up your shoe lace in the middle of a race which is a rookie mistake but it happens to the best of us and come on let’s go that just cost me a few seconds. But if you’re reading this, G’day. We’re Aussies. And we love running. Roads, trails, short, long, ultra, slow, fast… but mostly kinda slow. Which just means we’re out there longer, so being comfortable is even more important than those fast runners who are already cracking their first, or possibly fourth, beer, when we’re still chugging electrolytes at the first support station.

Our stuff is all made from the finest, softest, Australian-est (trust us, it’s a word) merino wool going around. Which makes our stuff some of the best running gear from the greatest little running gear company you’ve never heard of. We’re basically the underdogs. The Outsiders. We’re for people who value comfort and performance over fancy TV commercials with super cool celebrities. So if you’re an Outsider like us, why not give our stuff a go? Of course it all comes with a money back guarantee. And not one of those crappy 'return it in its original condition in its original packaging' guarantees, but a wear it, in the real world, doing your thing and if you still don’t love it send it back guarantee. That’s how much we believe in what we do.

If you’re not up to speed with why merino is so amazing, you can check out what you need to know here.

And if you’re on board with the whole natural, breathable, temperature regulating, moisture wicking, odor-resistant thing and want to stay comfortable for longer, through all sorts of conditions, cool or warm, go with io.

If you'd like expert advice from our trail running team, click here for more gear info. 

Read some of our trail running blog here. 

1 2 Next


Fabric Guide

While Merino is an amazing natural fibre, not all Merino fabrics are created equal. At ioMerino, we make our own fabrics, using only the best quality fibres, and to very specific specifications that make the most of the natural benefits of Merino. All of them are 'Merino rich’. No cheap blends passed off as Merino. No cheaper scratchy fibres or synthetic substitutes to save money. No unethical production. And each fabric is made for a specific purpose. So if you see something with a small amount of elastase or nylon added, you can be sure it absolutely needs to be there to enhance the natural stretch and durability. 

It took every bit of our 140 years of experience in the wool industry to perfect our fabrics, but we think you’ll agree the end result was more than worth the effort.

Ethically Made. Ethically Sourced. Perfectly Natural. 


Altitude / Zodiac

Lightweight 170gsm 96% Australian Merino Wool with 4% elastane for extra stretch and comfort. A MicroMerino® Fabric. 


Ultra / Universal

Lightweight 160gsm 83% Australian Merino Wool blended with 12% nylon blended for extra durability and 5% Elastane for stretch and comfort.



Midweight 265gsm 96% Australian Merino Wool with 4% elastane for extra stretch and comfort. A MicroMerino® Fabric. 


Summerino - Celsius 

Made from 45% ultra fine MERINO (Ultra Lightweight 150gsm), 45% natural TENCEL (made from sustainably grown wood fiber), and 10% nylon for extra durability. 


Summerino - Keystone 

Ultra Lightweight 150gsm 100% Australian Merino Wool. A MicroMerino® Fabric. 


Merino Compression

Midweight 280gsm 76% Australian Merino Wool, 15% Elastane and 9% Nylon for extra stretch and compression properties.



Ultra lightweight ribbed 155gsm 100% Australian Merino Wool. A MicroMerino®  Fabric. 



Outer Weight 280gsm Fleece 100% Australian Merino Wool. MicroMerino®  Fabric. 



Midweight 260gsm 100% Australian Merino Wool. A MicroMerino®  Fabric. 



Midweight 260gsm waffle texture 100% Australian Merino Wool. A MicroMerino®  Fabric. 


Stride / Glacier / Velocity

Midweight 255gsm French Terry 100% Australian Merino Wool. A MicroMerino®  Fabric. 


Natural Merino Wool benefits: