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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 1748 reviews
Altitude Tee
B (Sydney, AU)
Great base layers

One of many excellent ioMerino products I've purchased and will continue to do so. These are among the best base layers.

Stride Tracksuit Pants
Cat (Sydney, AU)
Great Travel Pants

The reviews are very accurate on these pants. They are very soft and comfortable, they suit my petite frame and have washed well. Highly recommend these.

Can’t go past the benefits of a natural fibre like wool. Soft, durable, warm, and breathable. Very comfortable also

Altitude 'Mongrel' Zip

Love my new " Mongrel" zip up so much that I ordered another one immediately so that I have a reserve.
Super comfy and I wore it for days without it smelling. Easy to wash and dry and the design and colour combination are exactly to my taste! Great quality products!

Ultra Tee
Ross Angood (Sydney, AU)
Very satisfied.

I have bought several items over the last 2 years and have always been very please with my purchases. High quality products.

Universal Tee
Lin Hutton (New York, US)

This is a “MUST HAVE”!if your are hiking or trekking (or on the Camino). Dries quickly (overnight easily) perfect for travel. Great either alone on warm days or as a base layer on colder days. An INDISPENSABLE wardrobe item. Lasts for years (decades actually!) single most important item in your backpack.

Universal V Neck Tee
Roland Stocker (Sydney, AU)
V-neck Tee

Very happy with the product. Would be nice if the product were also available in additional colours.

Celsius Tank
peter neville

great product true to size feels terrific

Stride Tracksuit Pants
Liam (Dubai, AE)
My girlfriend stole them :(

Cozy, warm and breathable, my favorite to relax in.
Only downside is they’re now also my girlfriend’s favorite to wear around the house. So I’ll need to buy a second pair.
Sizing: I’m 182cm, usually M/L. ordered L, fits well.
gf is 170cm and likes the loose fit



Summit Zip Hoodie
Lisa B (Charleston, US)
Love Love Love

I basically haven’t taken off this hoodie in the 2 weeks since I’ve received it. Incredibly warm and soft. I got a small and it fits true to size. Size up if you like a baggier fit. This hoodie is great!

Altitude Tights - Ready For Adventure
Sandy McDonough (Melbourne, AU)

Altitude tights fit great. They are so comfy, you don't know you ha e them on.

Excellent singlet, but runs small

Excellent sports singlet. I loved it so much I went back and bought it in several colours.
However, it runs quite small. I normally wear a M or L in womens clothes, and I had to get the XL in this singlet.
Once I sorted out the sizing I was really happy with it.

Altitude Zip
Jordan (Perth, AU)
Such great quality

This top is just as pictured. It is so flattering! The material is extremely soft and it's nice enough to wear as a top without covering it up under your other layers.


All good

Altitude Briefs Seconds
Shannon Williams (Brisbane, AU)
Low rider fit nice colour

The briefs are great, I would have sized up for comfort, but they look pretty cute for style
Happy with purchase.
I will buy again

Celsius Tee
Sharon (Adelaide, AU)
Awesome for summer

So glad I bought the Celsius t-shirt! It's awesome! So light and cool feeling. Perfect for the very hot days of summer. I bought my usual size and the fit is perfect. (I size up for the Altitude range.) Thanks io!

These are incredible. Stretchy enough to squat in.

Love, love, love

My favorite already


Love it!

This is my second pace sports bra and it’s just as good as the first one! I’m a 12E /14DD and the large fits well! Could almost size up but I like wearing it for energetic pursuits so prefer the snug fit. My main complaint is that although the main fabric does not retain smell at all, the elastic band does, so I wash it more than my other merino items. But all in all a fantastic product, totally recommend!