Women's 'Stripey' Altitude Base Layer Collection

We called this the Stripey range, because, ah, obviously. Then we gave it its very own section because even though it’s made from the same super comfortable fabric as the rest of the Altitude range, when we make the stripey fabric it fits and feels a stripey bit different. Still soft, still comfortable, still true-ish to size, but if you’re used to our other Altitude tops, this one will feel about half a size smaller. Up to you whether you go up a size based on how you want it to fit and feel.

All Altitude layers are designed to be longer in the body to tuck into your outer layers or sit over bottom layer so you don’t have exposed cold spots when you’re on the go. Ideal for bike riding where you’re bending over and you don’t want your top to ride up, and on mountain sports to avoid any exposed skin. 

The Altitude 'Stripey' Range is ‘contact fit’ to maximise thermal properties and sit flat under other layers. Made with 96% superfine Australian Merino and 4% Elastane to give extra stretch. Designed to be body-hugging and tight all over.

These layers are perfect for snow sports, cycling and running. 

For a looser fit base layer, try out Ultra Collection. 



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: