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If you’ve ever bought one of our products before, we’d love to hear what you thought about it. And so would everyone else. If you could take even 30 seconds to leave a quick review, it would be really useful to everyone else who might be considering buying that product. And if you haven’t bought one of our products before, check out what some of our customers have to say about their ioMerino. As always, if you don’t absolutely love what you’ve bought, or have any questions, just email our ultra helpful customer service team and see if they can’t get you sorted out.

Based on 1473 reviews
Freedom Sweatpant
Jenny McIntosh (Sydney, AU)
Freedom sweatpants

Really quick service. Love the pants. So warm and comfy. I’m usually a 10 and got medium size which fitted great. Lovely quality.

Chaser Skull Cap
Steven Atherton (Adelaide, AU)
Chaser Skull Cap

Excellent, keeps my noggin warm on long winter runs

Altitude Zip
Emma Tanzer (Adelaide, AU)
BEST winter warmth!

This is my second iomerino altitude zip, I absolutely love it and wouldn’t survive winter running without it. Super warm and gets me out on a 3 degree day at 5 am. Wouldn’t be without it ever. Cheers ioMerino keep up the good work 🌟

Altitude Racer Back Tank
Penny S. (Perth, AU)
Very comfortable

Bought for an extra warmth layer and emergency swimming top when backpacking. Very nice and comfortable.

Altitude 'Mongrel' Tee
Penny S. (Perth, AU)
So cool

I love this t-shirt. May not be able to resist another one in another colour. Very comfortable and I think it will be perfect for carrying a backpack. I did buy a larger size because I prefer a looser fit.

Pace Compression Leggings
Leisa Vincent (Brisbane, AU)

Bought these tights for their thermal properties for compulsory event gear. Ran for two hours in them in the rain and still managed to stay warm. Perfect fit. Will definitely be using them on my upcoming 24-hour events. Quite possibly my new go-to.

Newton Arm Warmers
Catherine Leonard (Melbourne, AU)
Great product

Very well fitted and comphertable they are great for winter runs

Pace Compression Leggings - Original
Christopher Lacey (Adelaide, AU)

Possibly the best thing I’ve ever done to my legs is put these leggings on!

Freedom Sweatshirt
Anne Crowley (Brisbane, AU)
Sumptuous Sweatshirt

Great product: sleek n stylish, and big tick for super soft feel against skin, good stuff, IO!

Ultra Zip
Barbara McKay (Queanbeyan, AU)
Perfectly Ultra

IO ultra zip is perfect - aI live it as a layer in the Canberra cold, warm, soft and love the green.

Altitude Tights - Ready For Adventure
Alan Carpenter (Adelaide, AU)
Warm and comfy

Surprisingly warm and comfortable. At 178 cm and 73kg I found the large to be an excellent fit. It would be nice to see a double layer on the knee to maximise durability because that is where wool tights invariably blow out after 3 or 4 years and it would be a good point of difference from the opposition. .

Altitude Crew
Bronwyn Steer (Railton, AU)
Warm & comfortable

Very warm & comfortable, happily purchase again

Altitude Tights - Ready For Adventure
Deborah Carey (Sydney, AU)
Great Quality

I recently purchased these tights for my husband to wear during a multi-day hike in Tasmania. He found them really comfortable to wear under his hiking pants and kept him warm during extreme weather conditions.

Altitude 'Mongrel'
Anne Harley (Sydney, AU)
Warm and funky

My order was processed and arrived quickly. I love that the Mongrel has some colour to add to the generally drab range available for winter. I love that it doesn’t make my skin prickle and itch. Highly recommended.

Altitude 'Mongrel' Tee
Kathryn Galloway (Adelaide, AU)

Comfortable, breathable. Soft. Love it and has kept me warm on a cold morning

Zone Raglan
T.O. (Adelaide, AU)
Love to wear natural fibres

The Raglan is the perfect top to wear in colder weather & I find myself wearing it not only when I walk early in the morning but all the time. It is super soft against my skin and the raglan sleeve is very comfortable.
I love the attention to detail in the seaming and appreciate the slight scoop hem at the back.
I usually wear a size M but purchased a S for a firmer fit and it fits like a glove.
The only thing this top doesn't do is come in other colours, Ink Navy would make it perfect.

Mullet Trail Sock
T.O. (Adelaide, AU)
Yep good!

Bought these socks for my husband as he likes to wear wool socks for work and any time really. He says "Yep good!.. the softest woollen sock I've worn & they stay up".

Yoga Pants
Christine (Launceston, AU)

Great for work and yoga - true to size and comfy
Australian merino wool too ;)

Newton Gloves
Tara Sheppard (Sydney, AU)

Great warm gloves, a bit bigger than I was expecting so could have sized down.

Summit Zip Hoodie
Lyn (Sydney, AU)
Best hoody I’ve ever owned!

As a person who always feels the cold, I was so glad to find the summit hoody really keeps me warm. Beautiful quality, lovely and soft. Worth the cost. I love it so much I will probably get another for my husband. I would say the sizing is a little on the smaller side so if you want to layer under it, maybe consider going up a size. Thank you IOMerino!

Ribbed Beanie
Darren (Coolum Beach, AU)
Warm beanie

This is the most comfortable beanie I have worn. Great product.

Ultra Zip
Darren (Coolum Beach, AU)
Great product

Ultra Zip my second long sleeve IO shirt. Great quality and fit. Would definitely recommend.

Altitude Crew
Libby Sharpe (Tenterfield, AU)
Soft and WARM

Excellant product - will be ordering more in the future

Hiking Socks
alan davis (Adelaide, AU)
Socks are socks are socks

Thought I'd try a pair of these socks having recently been converted to the IOMerino brand. Used them on a week long hike on the Heysen Trail. Verdict? Loved them. Comfortable and best of all my feet don't pong at night. A happy chappy.

Altitude Neck Warmer
Dave (Perth, AU)
Yep it's good

Just what I was after, for keeping the neck warm while riding motorbike. Seems of good quality too and I like wool


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 - 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.



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: