A letter from our Founder, David Michell

I know a lot of company founders are a bit old, crusty and boring, but I wanted to take a moment to introduce myself and tell you a little bit about what we do here at ioMerino and, just as importantly, why and how we do it. And I promise I’ll try and be as brief and not-boring as possible. I promise.

My family have been involved in the Australian wool industry for over 140 years, so you could definitely say wool is in my blood. During that time, we’ve learned pretty much everything there is to know about the best places to source it, how to process it, comb it, spin it and turn it into some of the finest fabrics on Earth.

As someone who loves to be active myself, I love getting out there in nature and trekking, running ultra races, going skiing and riding my bike. What I don’t like, is being cold or wearing poor quality merino baselayers. I don’t like it when those baselayers look like something grandma would wear, either. (With no offence to anyone’s grandma.) So back in 2004 I decided to do something about it.

My mission was to make the best quality, most comfortable, high-performance merino active wear imaginable. Plus, something that looked as good as it performed. I didn’t want to make just another merino garment, I wanted something genuinely different. Genuinely better. Our unique MicroMerino fabric was the result of all that hard work. It’s what really makes our garments better than the rest. And I don’t just guarantee these fabrics, I wear them.

Today, we use the most ethical production processes possible. We refuse to deal with the high volume, low-quality suppliers that most of our competitors do and instead control the entire process by knitting our own fabrics right here in Australia.

I’m so confident you’re going to love our gear, I’ve even introduced the Absolute Love Guarantee. Love it as much as I do, or return it. No questions asked. It’s as simple as that.

One last thing: as a relatively small player on the global stage, I’m not too proud to ask for your help, either. If you like what we do here at ioMerino, I’d consider it a personal favour if you told your adventure loving friends about us as well. Mention it to them, email them, share something about us on social media... whatever works for you. We’re certainly not aiming to be the biggest company on the planet, but the more people who know about us and what we do, the better. For them, and for us.

Thanks again for taking the time to find out more about ioMerino, and please feel free to contact me personally or my team at any time if there’s anything else you’d like to know or if there’s anything else we can do to help.

David Michell

ioMerino Founder and Wearer


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: