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Crew Socks

Fabric Guide Size Guide

Accessories Size Chart


All sizes are given in Men's US Sizing 

S 4 - 6
7 - 9
L 10 - 12
XL 13 


Arm warmers

Measurement give for bicep width. Measure around the fullest part of your upper arm in a relaxed position. 

Approximate measurements only. 

XS / S 23 - 28 cm
S / M  29 - 33 cm
L / XL 34 cm +


For further assistance with sizing, contact us here.

or make 4 interest-free payments of $7.50 fortnightly with More info


The Mid Weight Merino Crew Socks are an epic all round sock for all weather conditions - warm or cold. Hike in them, run in them, ride in them, or just wear them for everyday comfort and enjoy the many benefits of natural Merino wool socks.

Designed with a unique Merino-rich blend has been specially formulated for blister-prevention. The temperature regulating and moisture wicking benefits of the superfine Merino keep your feet warm, comfortable and ‘odour resistant’ without overheating.  The cuff prevents sock ‘slippage’ to avoid shoe rub. Extra padding in all the places you need it, and thinner, ventilated panels where temperature regulation is more important.

They’ll keep your feet warm in the cold, and stay comfortable if they get wet. They feel silky smooth and comfortable straight out of the pack.

'Crew’ length. Sitting between ankle and beginning of calf muscle. 

Slightly longer than the Multi-sports socks.

Size Guide.

Hiking in a low cut boot

Trail Running


Day to day wear 

80% superfine, anti-itchy Australian Merino

20% nylon for stretch and support.

Customer Reviews

Based on 8 reviews
Best mountain biking socks!

These socks are so comfy and warm! I cycle a lot, both on the road and on the trails and these are my favourite socks for on the bike. My partner has a pair too and he loves them as well. He tries to steal mine when his are dirty but I fiercely defend them!! I can highly recommend these socks! :)

My feet love them!

I just raced 640km in these socks in 5 days and didn't get a single blister. Perfect.I just raced 640km in these socks in 5 days and didn't get a single blister. Perfect.


Have worn many merino socks over the years and these are hands down, the best! Have purchase 4 pairs now and will get more as needed!

Great Socks!

Lived in them for 22 days pre/post & during NZ Venture 2016 (900+ AU & NZ Venturer Scouts & Leaders), loved them. Flew, walked, hiked, trekked, tramped, paddled - no smell, great fit and awesome comfort. Raved about them to fellow Scouters, told them to support a Aussie company instead of that Kiwi one!
Took suggestion from previous review and bought 4 pairs!!

Awesome socks!

Just got back from climbing and camping for 2 weeks in Joshua Tree National Park (California). I wore my 'Super Comfortable Multi-Sport Socks' every day and they were great! Stayed soft and cushy, despite not having any capabilities for washing them the entire time!!! I love these socks for any activities...running, hiking, cycling, whatever. All I would say, is one pair is not enough!


Definitely the best merino socks going around!


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 - 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: