Ultra Tee - S.A Rogaining Edition

Fabric Guide

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The Women's Ultra Tee is as soft and comfortable as ever combining all the natural benefits of our finest MicroMerino® fabrics with just enough nylon to create our most durable fabric ever to withstand the most demanding adventures

A true high-performance garment packed with extra performance features like tag-free labels and flatlock stitching that eliminates chafing and maximize comfort, and the reflective trims have been added for extra safety in low light.

Wear it on its own to stay cool in warm or mild weather, or as part of a layering system when the temperature drops

Print to order.Exclusive SARA limited edition print.  

Designed with a body-skimming, sports fit. 

True to size.

Model wears size medium.

Made with lightweight 83% superfine Australian Merino Wool, 12% Nylon for durability and 5% Elastane for an easy four-way stretch and freedom of movement.

Lightweight 160gsm

83% superfine Australian Merino Wool

12% Nylon for extra durability

5% Elastane for an easy all-way stretch



Customer Reviews

Based on 21 reviews
Zoie Grant (Perth, AU)
Satisfied Customer

Love the style, shape, fit and oh so soft feel of this perfect T-shirt.

Sarah Tamang (Adelaide, AU)
Very comfy tshirt

This tshirt is great for running on cool days. I usually get too hot even with short sleeves and wear a tank. I dont get too hot with this tshirt, but it keeps me warm on those frosty morning runs! Loving it and want to purchase more!

Emily P. (Sydney, AU)
Worth every cent

This top is light weight, soft and very comfortable. I am going to purchase another and also invest in a long sleeved one too. It’s a great cut and perfect if you don’t like tight fitting tops.

Joanne L Hoad (Bellevue Hill, AU)
Favourite running shirts

These are my go to running shirts, really comfortable and don't smell, even after several runs between washes. They don't chafe me at all and are still comfortable to wear even when I have worked up a sweat, they aren't at all hot or prickly to wear

Mary Driscoll (Roslindale, US)
Brighter days ahead

I have become a committed daily walker and weekend hiker during the pandemic and am organizing my life to keep these positive new habits going as we return to a new normal. I love the bright orange color of my new ultra tee and the fact that I can throw it on for my morning walk multiple times in the week without needing to worry about laundry.

Shellee Duncan (Sydney, AU)

Worth every cent , so comfortable . Wore it on a rainy day long run recently super impressed how warm i was in this which being the cold frog i am is very very important for me


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: