What does 'io' stand for? 

One of the questions we get asked quite a lot is “What’s the ‘io’ in ‘ioMerino’ stand for?”. And it’s a fair enough question.

Well, we’ve decided to clear it up once and for all. ioMerino has always been a brand for people who are into the outdoors. And for people who are heading into the outdoors. Whether that be on trail, on mountain, on the water… anywhere outdoors. 

And that’s what the ‘io’ stands for. ‘Into’ the ‘Outdoors’. Because ioMerino is the perfect, natural clothing to wear outdoors.

We’ve never quite understood why people who love nature and natural things so much would then go and dress in plastic? OK, yes, there are times when there are no natural alternatives. We’ll admit if you need good waterproofs, you’re going to have to bite the bullet and wear something synthetic. But if you’re looking to say comfortable and warm, why choose plastic when you can choose one of Mother Nature’s best natural fibres: Merino wool.

Oh, and now we have fancy new logo that celebrates our love of the outdoors and our Australian heritage. There’s an ‘i’ with a star on it. And no ordinary star, but it’s what’s known as the Federation Star as featured on the Australian flag, and as a proudly Australian company, is a show of our heritage and country of origin. And then there’s the stylised ‘M’ which, of course, represents a mountain and the great outdoors in general. So there you go, if you’ve ever wondered what the ‘io’ stands for, and what ioMerino is all about, now you know. See you in the outdoors.




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: