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Altitude Zip

Fabric Guide Size Guide

Women's Size Chart

Click here to learn more about our different fits and how to choose the size that's right for you.

We strive to make all our products true to size. The sizing chart below is not garment specific, but hopefully, it will give you some guidance when choosing your size. In instances where you’re perhaps in between two sizes try choosing the smaller size.

For further assistance with sizing, contact us here.

 

Women's Size Conversion Chart

 

XS

S

M

L

XL

Australian

6-8

8-10

10-12

12-14

14-16

US

2-4

4-6

6-8

8-10

10-12

European

34-36

36-38

38- 40

40-42

42-44

 

Contact fit - Altitude Range

Please keep in mind the Altitude Range is design to fit tightly - 'contact fit' 

    XS S M L XL XXL
Bust inch 30-32 32-34 34-37 37–40 40–42 42 - 45
cm  76 - 82 82 -88  88-94  94-100  100 - 107 108 - 114
Hips inch 34-36 36-38 38-40 40-42 42-44 44 - 47
cm 84 -90 90-96 70-76 76-82 82-89 111 - 119
Waist inch 24-26 26–28 28-30 30-32 32-35 35-38
cm  58 -64  64 -70  70- 76 76- 82 82- 89 89-96

 

 

Regular and Loose fit - Universal and Ultra Range 

    XS S M L XL XXL
Bust  inch 29.5–32.5 32.5–35.5 35.5–38 38–41 41–44.5 44.5–48.5
cm 75-82.5 82.5-90 90-96.5 96.5-104 104-113 113-123
Hips inch 33–35.5 35.5–38.5 38.5–41 41–44 44–47 47–50
cm 83.5-90 90-97.5 97.5-104 104 -111.5 111.5-119.5 119-127
Waist inch 23.5–26 26–29 29–31.5 31.5–34.5 34.5–38.5 38.5–42.5
cm  60-66 66-73.5 73.5-80 80-87.5 87.5-94.5 97.5-108

 

Women's Stride Tracksuit pants

Measurements include the ankle cuff. Please keep in mind the style of these pants is slightly drop crotch. 

Outside leg measurement includes waist band.

Measurements in cm. 

 

XS

S

M

L

XL

Outside Leg

94.3

96.1

97.9

99.7

101.5

Inside Leg

66.4

67.6

68.8

70

71.2

 

Women's Compression Leggings 

Inside leg measurements.

Model height 5'10 wearing a size small. 

Measurements in cm. 

 

XS

S

M

L

XL

XXL

Inside Leg

59.5

62

64.5

67

69.5

72.8

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Black
Port Marle
Slate Marle
Boysenberry Marle
Dark Blue Marle
XS
S
M
L
XL
XXL

The Women’s Altitude Zip Base Layer thermal takes natural temperature regulation to a whole new level. It is the perfect ‘go to’ thermal layer for just about any adventure, especially if you’re expecting to hit a range of temperatures.  Zip down when it’s mild, zip up and thumb loops on when the temperature drops.  The high collar also offers an extra level of warmth beyond the Women's Altitude Crew Neck Base Layer version of this top.

Flatlock stitching, raglan sleeves and tag free to eliminate chafe and maximize comfort. The drop back hem and extra body length is designed for tucking into your outer layers. Thumb loops keep your hands warm and stop your sleeves riding up when layering. 

This Base Layer Thermal top is the perfect combination of performance, warmth and comfort.  

Ultra Trail Australia mandatory gear approved thermals.

Designed to be worn as a body tight ‘contact fit’ layer. 

Drop back hem and extra length in body. 

Thumb loops 

Zip Neck

True to size. Model is 5'10" and wears size small.

Size Guide. Contact Fit.

Snow Sports

Cycling

Running

170gsm lightweight

96% superfine Australian Merino

4% Elastane - for an easy all-way stretch.

MicroMerino®  Fabric. 

BENEFITS OF MERINO

LIGHTWEIGHT
THERMO REGULATING
SUPER SOFT & COMFORTABLE
BREATHABLE
MOISTURE WICKING
ODOUR RESISTANT
NATURAL
ETHICALLY MADE

Customer Reviews

Based on 27 reviews
81%
(22)
4%
(1)
11%
(3)
4%
(1)
0%
(0)
p
p.s.
Season change

My first iomerino jumper. The fit is longer and warmer then the competitions brand. I had to go up a size but the fit is great. The jumper also is soft and of course being merino versatile.

Glad to hear you are happy with your choice
A
A.C.
My favourite top

I have a few of these tops. Great fit. I love the feel against my skin. I wear them underneath jackets or on their own. Great for everyday wear, travel, exercise.

Great to hear Angela!
J
J.M.
Great service

I ordered the top and it was delivered the next day !
It looks good but is a gift so I haven't worn it.

Great to hear! You''ll have to buy yourself one!
H
H.
Love it

Lovely soft Merino top, nice length to keep my bottom warm. Thumb holes are perfect .
I found the sizing to be a little roomier than my other IOMerino tops. I’ll be purchasing more of this top 💖

Thanks for the positive review, Helen!
J
J.
Great customer service

Love this top - very soft, great sleeves. It’s a snug fit which means it’s great underneath other layer.

N
N.
Great top, just have small thumbs!

I really like running in this top, it’s comfy and great for the winter weather. My only minor issue is that the thumb holes are a bit small, I’m hoping they stretch a bit!





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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.

 

Chaser

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.

 

Vital

Ultra lightweight ribbed 155gsm 100% Australian Merino Wool. A MicroMerino®  Fabric. 

 

Summit

Outer Weight 280gsm Fleece 100% Australian Merino Wool. MicroMerino®  Fabric. 

 

Pinnacle

Midweight 260gsm 100% Australian Merino Wool. A MicroMerino®  Fabric. 

 

Elemental 

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: