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Ultra Tee - S.A Rogaining Edition

Fabric Guide

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The Men'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 4 reviews
Comfy and no smell

Have worn this for good runs then hung in garage to air and not a hint of smell and so comfortable..amazing shirt

Hi Jeremy, thank you for the positive review. Glad to hear you're loving your new t-shirt and all the odour free benefits of Merino!
Hubby loves it

Bought for husband, we've tried tshirts from several different merino companies. This is very comfortable, fits well and great choice of colours. Bought on sale so not super-cheap but easier on the hip pocket. Will definitely buy again

ultra good shirt for ultra

great shirt. just what is needed for long runs. super comfy. great feel. will not hesitate to buy another one. love the colour.

Super durable and comfortable!

Wore the Ultra Tee for my recent Adventure race. It's super duper comfy, durable and issue free. Despite bashing through endless kms of dense scrub, being ground up beneath a pack, dragged across rocks and being poked with sharp bike bits, it pulled through without so much as a single frayed thread or stretched panel. Would recommend! See our full review: http://www.blog.iomerino.com/io-crew/the-ultra-review/


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 - 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: