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Ultra Tee

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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Silver Pine
Red
Charcoal
Port
Dazzling Blue
Orange
Night Shadow
XS
S
M
L
XL
XXL

Designed with ultra runners in mind the Women's Ultra Tee is as soft and comfortable as ever. Using our new core-spun fabric which combines all the natural benefits of our finest MicroMerino® fabrics with just enough nylon to create our most durable fabric yet, designed to withstand even the most demanding adventures.

Tag-free labels and flatlock stitching helps eliminate chafe and maximize comfort. Reflective trims have been added for extra safety in low light.

Designed with a body-skimming, sports / regular fit. 

Light scoop neck. 

True to size. 

Model wears size medium - Night Shadow, Charcoal, Orange, Port.

Model wears size small - Blue, Pine and red.

Size Guide. Regular Fit.

Running

Hiking

Lightweight 160gsm

83% superfine Australian Merino Wool

12% Nylon for extra durability

5% Elastane for an easy all-way stretch

BENEFITS OF MERINO

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

Customer Reviews

Based on 7 reviews
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(7)
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S
S.C.
🧡 so good 🧡

I bought the Ultra round neck T in orange. It is so vibrant. Maybe one day they might make a vibrant pink one - but for now - orange will do nicely. These and the altitude Ts are the only Ts I run in now. Team them up with a pair of iomerino arm warmers and you are good to go.
Slightly looser fit than the altitude Tshirt. I am normally a ladies size M 12/14 in tops. I pick M in the Ultra Range and L in the Altitude Range.

Happy to hear you're loving the Ultra Tees, Sarah! Fingers crossed for a bright pink version in the future!
I
I.P.
Love it

Love this tee and my other ioMerino pieces. Super comfy in all weather conditions.

M
M.
iO merino Super happy

I have a several iO merino items and I love them all. I am lucky enough to now own an ultra tee and it's fabulous. The merino is super comfortable, breathable and the fit is perfect. I also have to say that the communication/customer service with iO merino was outstanding. They are super helpful and nothing was too much or too hard for them. Excellent products and excellent customer service. Highly recommend :-)

Hi Mhairi, thank you for the positive review. We work hard to make great products with great customer service to match! We’re happy to hear we hit the mark for you!
M
M.S.

Great top for running keeps you cool and warm

Thanks for the review Marcia! We're so happy to hear this tee hit the mark for you! Come back and shop again soon!
D
D.C.
Very happy

I now have 3 T-shirts. The most comfortable running top I own

J
J.
One for me, one for my friend

I am a massive fan of ioMerino products. I don't know how I ever travelled without them! I already own one of the Ultra Tees. It has actually become my cycling shirt. I recently wore it on a 6 day cycling trip in New Zealand. I wore it every day, did not wash it, and at the end it still DID NOT SMELL! Amazing! And it was so comfortable even in very sweaty conditions. I love the Ultra Tee so much that I bought one for my friend who does not as yet own any merino clothing. She immediately wore it on a 2 day hike and loved it. I absolutely recommend the Ultra Tee for comfort and non-smelliness!





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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: