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Keystone Long Sleeve

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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Port Royale
Espresso
Waterfall
S
M
L
XL
XXL

Everyone knows Merino is epic at keeping you warm when it’s cold, but did you know our Keystone ‘Summerino' Long Sleeve Top is just as effective at keeping you cool and comfortable when it’s warm?

The natural breathability and thermo-regulating properties of our MicroMerino® fabrics help keep you insulated against whatever Mother Nature can throw at you. The 100% Merino Keystone Long Sleeve is super fine, soft, lightweight, moisture wicking, odour-resistant, delivers UV protection from the sun and is a revolution in comfort all year round

Designed to have a casual, relaxed fit. 

True to size. Model is 6'2" and wears size medium. 

Size Guide. Casual Fit.

Warm Weather 

Hiking

Camping

Travel

Ultra-lightweight 150gsm

100% superfine Australian Merino.

MicroMerino®  Fabric. 

BENEFITS OF MERINO

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

Customer Reviews

Based on 3 reviews
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G
G.O.
Warm and comfy

Worn this one from CP3 to CP4 of UTA100. Very cozy and light.

Hi Gideon, thanks for letting us know how your new top travelled during the Ultra Trail Australia! Glad to hear it was a winner!
L
L.
Possibly one of my best clothing purchases

Love my Keystone long sleeve. Initially hesitant to purchase because worried about wool being scratchy (nope!), I've used it trail running (including ending up in water and still stayed warm), under a fleece for extra warmth, but then also stylish enough to wear casually on those days that are cool but not cold enough for a jumper. Possibly one of my best clothing purchases. Oh, and it scrunches up small in a pack, for those "just in case times".

B
B.
perfect base layer

There is nothing like having Merino Wool against your skin, this is the perfect base layer for almost any activity!





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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: