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Ultra Zip

Fabric Guide Size Guide

Men'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.

 

 Men's General Size Chart

 

 

XS

S

M

L

XL

XXL

Waist

Inch

27

28-30

32-34

36-38

40-42

44-46+

 

cm

68 - 70

71-76 

81-86

91-96

101-108

111-116+

Chest

Inch

32-34

34-36

38-40

42-44

46-48

50+

 

cm

81.5 - 86

86-91

96-101

106-111

116-121

127+

 

Tracksuit Pants 

Outside Leg measurement (including waist band).

Model height 6'2 , wearing a size medium. 

S M L XL XXL
Inside Leg inch 29 30  30.5 31 31.5
cm 74.5 76 77 78.5 80
Outside Leg inch 41 41.5 42 42.5 43
cm 105 106 107.5 109 110

 

Merino-Compression Leggings

Model height 6'3 , wearing a size large. 

XS S M L XL XXL
Inside Leg  inch 25.4 26.4 27.4  28.3 29.3 30.3
cm 64.5 67 69.5 72 74.5 77

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Dazzling Blue
Silver Pine
Charcoal
Port
Chilli Pepper
XS
XS
S
S
M
M
L
L
XL
XL
XXL
XXL

Designed with ultra runners in mind the Men's Ultra Zip 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.

It is the ultimate in versatility and temperature regulation; sleeves up, and zip down when it’s mild and sleeves down, zip up and thumb loops on when the temperature drops. Wear it on its own to stay cool in warm or mild weather, or as part of a layering system when the temperature drops.

Tag-free labels and flatlock stitching helps eliminate chafe and maximize comfort. The high collar and quarter zip add greater temperature regulation. Thumb loops keep your hands warm and stop your sleeves riding. Reflective trims have been added for extra safety in low light.

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

Thumb loops

Zip Neck 

True to size. 

Model is 6'2" and wears size medium in blue, port and charcoal.

Mode wear size large in red and pine.

Size Guide. Regular Fit.

Trail 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 6 reviews
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(3)
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(3)
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S
S.
Summer cycling

Purchased as a gift for my partner who was looking for a long sleeve light merino top with a collar for sun protection when cycling. The blue colour is great and the large size is a good relaxed fit, not too tight but not too baggy. He wore it on a 3 day bike tour without washing, I didn't notice any smell. It will be able to be used also for a number of activities like hiking and ski touring.

B
B.F.
Fantastic Second Layer, Zipper May Irritate When Used as a Base Layer

I have worn my Ultra Zip on four runs. The material relatively warm and dries quickly. It did not smell after I wore it three times without washing it. The material is non-itchy, relative to other wool products that I have tried.

The top has a slim fit, and seems designed to be worn either directly against the skin or above another shirt. When I wore this shirt directly against my skin, the shirt's zipper irritated the skin along my sternum. The irritation was minor, and my skin is quite sensitive. I tried the zipper in a couple positions, but the irritation persisted. As a result, I prefer to wear this top over another shit.

M
M.S.
Well designed

The ‘long’ sleeves & polo neck are great, Like the fact it available in burgundy colour (not ‘loud’). Very good design. These are my daily wear. Yes, i would be happy to renew when the time comes😁. MS

P
P.B.
Perfect

This is the second top I have purchased as its beats other brands for softness and a high warmth to weight ratio. Perfect fit.

P
P.
Hiking base layer

Great base layer for hiking. Tried a lot of different brands of pure merino and always found that they were itchy. Have worn the Ultra Zip several times now in wet weather conditions and it's very comfy, no itch. Would purchase again for sure.

G
G.R.
Almost Perfect

Great feel, weight (for Southern California), and color (Dazzling Blue). MInor suggestion: cut a tad too slim for my taste (6', 170 lbs.). I would have preferred a regular cut option.





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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 - 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.

 

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: