High-Performance Merino Wool Base Layers for the Trails, Camping and Hiking

Whether you walk or run, hike or camp, whether you cover one mile or a hundred, our unique MicroMerino® fabrics are specially designed to keep you more comfortable than you ever thought possible when you're hitting the trails. With natural breathability, temperature regulation, moisture wicking and odour resistance, you’re not only off to a great start but an equally comfortable finish.

If you'd like more info on what we recommend for all of your hiking, camping and trail adventures, click here for expert advice. 

Read some of our Trail blogs here.

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Our range of high-performance Merino Wool clothing the perfect addition to any outdoor lover's wardrobe. They’re super lightweight and breathable yet incredibly warm. Whether you’re hiking in the backcountry, climbing Mt Everest, or camping on the edge of the forest you’re going to be comfortable in our range of Merino thermals. 

Made with superfine Australian Merino wool, our lightweight thermal layers packs small in your backpack, keep you fresh for days on end and warm and comfortable across a wide range of temperatures.

Shop Men's and Women's Hiking Base Layer tops, Thermal Tights and Leggings, Fleece Hoodies and Jackets, Merino Hiking Socks, Neck Tubes and more.  


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: