Our mission is to make the warmest, most comfortable Merino Wool Thermals, Base Layers, Outdoor Clothing and accessories imaginable. To be the brand that people who love being Outside, love being Outside in. The brand you want if you like to try new things, different things, better things.
Our Merino outdoor clothing is ethically made from Australian wool, which is recognised as the best in the world. It's this quality that gives our 6th generation wool family the perfect raw materials to make the finest, softest, merino clothing going around. We use more than a century of wool know-how to make high-performance Merino Wool Thermals and Outdoor Clothing that'll help you stay warm and comfortable for longer, through a wider range of conditions. We even develop our own fabrics that out perform, and feel better, than other merino fabrics.
We want you to LOVE our product and offer real-person customer service and 60 day returns to make sure you're 100% satisfied.
Superb purchase! Been looking for a good, authentic verified Merino top that will perform and I am greatly happy with what I bought. Will need to get another one.
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.
I bought my first Mongrel top last winter and fell in love with it. Its like a warm second skin when out hiking and running on trails all day especially after a beautiful frosty morning. Its so comfy when running, so warm yet thin enough to layer till the frost melts.. So much so I bought another one. I hope these remain.
This merino beanie is amazing. I have never found a comfortable beanie that doesn’t make me sweat and overheat. Highly recommend this.
Perfect for cold morning exercise and lounge wear :-). So warm & comfortable. I’m size 12 & purchased the Medium. Perfect fit.
Absolutely in love with the Mongrel! Everything about it is just perfect. I have never been able to wear merino before and tried this as I just loved the style and for the first time, no itchiness. I’ve since been back online and purchased more products. Just amazing out on the trails running and on the mountain bike too, plus it looks great! Highly recommend!
I love these tops so much that I now have 3. I run on the Blue Mountains, NSW, and they are perfect for the cold weather. Keeps me warm without getting too hot.
These tights are amazing, so warm and comfortable. I'm not sure what I was thinking waiting so long to buy them, now I have three pairs :) LOVE, LOVE LOVE them
So comfortable to wear. Have run in -1c and top is warm and soft
Everyone needs a bit of Mongrel to help them when out in those cold, wet and woolly conditions.
Without it you're day will be very miserable but instead you'll just be keep going strong when wearing the ioMerino Mongrel. Plus as an extra bonus, it just looks so damn good
Fantastic product, extremely soft and comfortable. Absolutely love it
Service and delivery was just as outstanding as the product itself.
Bought these items on recommendation from some of my running/cycling friends. I certainly wasn’t disappointed and they feel so warm, cosy and comfortable to wear. Not only are these items very functional but stylish too. I usually wear XS which I bought and the size is perfect. Highly recommend
I actually have a few long sleeve merinos but this is my first ultra one with the zip. It is my new favourite!! The fit is slightly looser than the altitude tops which is super comfy, and the higher neck with zip means my neck does not get cold. The sleeves are also nice and long and come with that thing that is so much in demand for us tall people - thumb loops!! Yay! Love this top and would happily buy another one.
I bought 2 different style beanies and they are awesome! Great service Thank you for our beautiful Australian Wool beanies
I own ‘a lot’ of high end (& damn expensive) compression leggings as I lift weights regularly. These are EXCELLENT leggings in every way.
They are soft, breathable, temperature regulating, firm fitting yet not pinching at the waist, flexible and squat proof.
I will be wearing these as my every day leggings due to the high waist and comfort factor.
I wear my jeans stretch and tight fitting and am a size AU10 with solid legs and a regular waist and the size Medium fit like a glove. I will absolutely be buying additional pairs.
I have had these tights for approx 2 months now and can not fault them!! Absolutely the most comfortable well fitting tights I have ever owned. Sizing is spot on as well.
The tank top works on its own or, in the cooler Tasmanian weather, under a long sleeve top when you don't want two sets of sleeves.
I have 2 pairs on rotation. They are the best fit and most comfortable track pant I’ve ever owned. The cut and fit are perfect. They wash up really well too.
Loved this top from the moment it arrived. Soft and comfy - my go-to when changing out of the work wear at the end of the day. It's also been my outer running top for cold mornings, then gets tied around my waist once I'm warmed up. Love the fact it can see a lot of wear between washes, and it's held its shape well.
I've just received two more of these after wearing my first two almost every day, winter and summer... so good! So comfy, they fit well and wash and wear well. I'll keep buying these over and over again.
I use these for cycling on cold mornings and find them just right. I like to stop and take photos along the way and I was able to handle both the phone camera and camera pretty well, leaving the gloves on. Lightweight but warm enough. Really happy.
I bought this on a bit of a whim, not sure what to expect. I am a 12/14 so bought the L and it is snug. But fits perfectly. When I buy zip tops in the Altitude range for layering over a base, I will size up. The top is gorgeous though. The fabric quite silky and smooth, and the seams also smooth. As a first time buyer, I am so impressed that such good quality Merino active wear is available in this price range. And I get to buy local which is fantastic. Delivery was easy and quick, given I live regionally and we have issues with postal services due the pandemic. Very happy.
To be honest I think I may need this hoodie surgically removed as it is so comfortable and warm on the cold evenings and mornings! The fleece quality is excellent and the fit good. I love it. I really do. So impressed with the quality.
The best leggings I have ever had (and Ive had lots!). They are so comfortable and light but still warm. Really soft and I love the waist band. These will be my go to from now on :)
Super comfortable, great fit perfect temperature control like all ioMerino.
Once you start to wear ioMerino you can’t wear anything else, it’s that good!
I only ever run / ride in wool socks now. This pair is good for on the bike when you need a little extra warmth
I just love these briefs. Perfect for running and everyday wear. I will gradually replace all my undies with these
I have one of these already which I wear as a neck warmer and now a head scarf to help my bad lockdown hair days. Bought a couple more for some colour diversity in my zoom calls :)
Feels great! Easy wash & wear. Just a great base layer for pretty much everything....cycling, hiking or just day to day as a layer of warmth.
This jacket is magnificently warm. The knitted finish on the outside hides a wonderfully soft interior. The pockets are roomy and the zip up front and hoodie tie allow you to secure the front of the jacket and dash off into the chilly morning. As you warm up, the zip allows you to circulate air to your body, and of course, it whips off easily when you need to remove it mid-run, and tie it around your waist to complete the run. This is a great jacket and I would strongly recommend it.
Put these socks on for the first time and I heard my feet heave a sigh of relief! I have been given them a hammering wearing them day in and day out but cannot get them to stink up!!J ust loving the feeling of wool on my tootsies!!
Every item I buy from iomerino I wonder how I did without. The socks-amazing!! The long sleeved tops-fanbloomintastic!! The service-brilliant. Do not hesitate to buy these products. They are second to none!!!
Extremely happy with the zippered long sleeved shirt - so light and warm and well made - will be getting another !!
I've been riding in merino jerseys for several years. These are the best I've worn yet. Super comfy, xlnt fit (I'm 180cm and 73kg, size M), very warm, and no stench.
I got these for my husband and his first words about them were “so comfy”... He’s loving wearing them for layers and sleeping, as well as recovery after runs. Great fit, no chafing complaints, not stinky or sticky. An all round winner!
Liked this so much I've bought another. Really soft and also warm for how light it is.
This is my second altitude crew top. It looks and feels great. The colours are gorgeous too (boysenberry marle and port marle). I find this top perfect for casual wear, walking, computer cycling, hiking and camping. It looks good on it’s own and fits well under another layer. Great customer service too. The team were very quick and responsive resolving a wee issue.
Feels super smooth on the skin and perfect fabric thickness not too heavy and not too light.
Is a great cut & lovely soft fabric, I loved it so much I bought a second.
I bought this hoodie a few years ago and was super excited to see it made a comeback. I wore this thing so much I eventually got holes in it. Money well spent and I was sad that at the time I was not able to order another one. Welcome home hoodie, you have been missed❤
I love the ultra tee, it's not as thick as the altitude which I find perfect for running. It's a nice loose fit which is great and does not smell at all. Layers perfectly with the ultra zip. The fabric is so comfy!
This is great shirt, the logo on the back is really cool. It's probably a little thick for most QLD weather but great for the early morning runs in winter. It does not stink, ever! Tighter fit compared with the ultra tops.
I wear this long sleeve running and hiking. Actually I wear it a lot because it is so comfortable and it doesn't stink like synthetics!! Requires minimal washing. Nice loose fit so you can layer up with a singlet/shirt underneath. No chafing what so ever (even under a hydration pack). I love the zip because you can control the temperature.
Best Hooded Zip Base Layer!Quality clothes. I recommend to everyone
Truly, I have never had any product in wool that feels so good quality and that I feel will not wear thin in the sensitive-wear areas. I am a Norwegian and grew up wearing woolen underwear, so I am speaking from experience. I can move with ease and I also do not feel claustrophobic inside too much tight stretch and itchy sweat producing wool. Thanks for making such a great product that I hope (since it looks like it) will last me many years.
Wore my ultra zip today. Went on a short 10k hike, in cold (15deg) wet conditions. I wore it as an outer layer, with a merino singlet under and a rain jacket over the top. It kept me warm and regulated my body temp throughout the day. Love it!
I have owned several pair of these crops for years. I finally had to give in and buy 2 new ones to replace my well-worn old ones. I wear a 4 or 6us shirt, 34B bra and I am 5ft4 about 135 pounds. Medium fits great. I love these things. Great support for my girls for yoga, running, wrangling rescue hounds, hiking. They never stink. I wash them on wool cycle (rarely). are comfortable. Thank you IO!
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.
Lightweight 170gsm 96% Australian Merino Wool with 4% elastane for extra stretch and comfort. A MicroMerino® Fabric.
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.
Ultra Lightweight 150gsm 100% Australian Merino Wool. A MicroMerino® Fabric.
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. A MicroMerino® Fabric.
Midweight 260gsm 100% Australian Merino Wool. A MicroMerino® Fabric.
Midweight 260gsm waffle texture 100% Australian Merino Wool. A MicroMerino® Fabric.
Midweight 255gsm French Terry 100% Australian Merino Wool. A MicroMerino® Fabric.