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Vital T-shirt

Fabric Guide

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The Vital Second Skin Range is the foundation of the ioMerino layering system. It well and truly takes performance layers to another level and perfectly demonstrates what our superfine MicroMerino® clothing has to offer.

Arguably one of the softest and lightest weight Merino Layers on the planet, it is made with a unique 100% pure superfine MicroMerino® fabric. The ribbed fabric texture creates tiny air pockets at both the skin and interlayers to help trap warmth and wick moisture away to keep you warmer and fresher than you would ever believe possible from a top this thin and lightweight.

With its unbelievably silky smooth and soft fabric, the Vital Merino Wool Tee is designed to be the very first layer worn under any other layers you may have, including your cycling kit. It’s so lightweight you’ll hardly know you’re wearing it, but it will provide an amazing level of warmth for such a light garment.

While this Merino Tee can be worn for any activity, it was really designed with our cycling friends in mind. The lightweight fabric, combined with a super soft next to skin feel and contact fit, means it sits nicely even underneath a standard cycling kit. No weight, no bulk, just warmth. So light you’ll hardly even know you’re wearing it, because it’s naturally breathable, it won’t give you the sweats - or the stinks. 

Tag-free labels and flatlock stitching eliminate any chafe and add to the comfort for the fabric. Perfect as the first layer for alpine sports and cycling when you need maximum warmth with minimal bulk.

If you’ve ever steered clear of Merino Wool because you didn’t believe it could be soft or comfortable enough, or if you’ve tried other brands and been disappointed, this is the top that will make you rethink everything.

Suitable for people with sensitive skin and allergies.

Snow Sports


Designed to be worn as a ‘second skin’ layer. 

Model wears size meidum.

Made with 150gsm Ultra-Light 100% superfine Australian Merino.

Worldwide express shipping on all orders.

All orders are processed in Australian Dollars

Delivery times: 

Australian Orders 1 - 5 business days (Star Track, Toll Ipec and Express Post)

International Orders 2 - 8 business days. (DHL)

Shipping costs:

Australia and New Zealand - Free shipping on all orders greater than $100 AUD. $10 AUD for all other orders. 

USA - Free shipping on all orders greater than $200 AUD. $15 AUD for all other orders. 

Canada, Europe and UK - Free shipping on all orders greater than $250 AUD. $25 AUD for all other orders. 

Asia - Free shipping on all orders greater than $200 AUD. $20 AUD for all other orders. 


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: