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Altitude Tee - Run All The Trails Original

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Color: Charcoal Marle
Size: XS
XS
S
M
L
XL
XXL
BEST FOR 

Running

SIZE & FIT

Originally designed to be worn as a base layer, (is usually underneath something else), this is a ‘contact fit’ layer so will hug your body. If you don’t want it to fit, feel or look like a second skin, you might try another style, or go up a size, but please note: even going up a size will fit quite close to your body because of the fabric and cut.

Regular body length, shorter than the Altitude long sleeve styles.

Model is 5'10" and wears size small in Charcoal Marle.

Size Guide. Contact Fit.

Our Altitude range was originally designed as a baselayer, to fit close to your body for maximum performance, so it’s snug but soft, with plenty of give for extra comfort. If you’re usually a medium, for example, you might find the medium fits tighter than you’d expect because it’s designed to be ‘contact fit’ and look and feel like a second skin. If you’re looking for a more relaxed fit you might consider sizing up (it will still be relatively snug) or choosing another style.

The high performance Altitude Base Layer ‘Run all the Trails’ Tee will keep you comfy through a wide range of temperatures and conditions - wear it as a base layer with extra layers on top for more warmth when the weather hits hard, and when the temperature rises, you’ve got the perfect lightweight and breathable T-shirt.

(For a more relaxed fit try our Ultra or Universal T-shirts.)

Tag free, flatlock stitching, raglan sleeves eliminate chafe and maximize comfort.

(If you’re wondering how this one is different to the Classic version, that one has an ioMerino logo on the sleeve. Other than that, they’re exactly the same!)

Why you’d buy this: You like your stuff to fit nice and close to your body whether you wear it on its own, or under another layer and don’t want any extra bulk or bunching. You might also want a bit of extra length which this one gives you. It’s super soft and comfy, and 96% merino so it’s super natural which means almost no microplastic issues when you wash it or landfill when you’ve finished with it.

As with all our clothes, the merino delivers natural temperature regulation, breathability, moisture wicking and odour resistance.

DESIGN SERIES

Our Altitude Design Series are produced in smaller, limited quantities and may take a few extra days to produce so please allow for this in your delivery time. If you have ordered one of these along with a standard item, your order won't be sent until your Design Series tee is ready. We will continue to have various artworks produced so check back from time to time or sign up to our Outsiders Club to see new designs as they are released.
To order a plain version of this tee, or view other styles check out our Altitude range here

BENEFITS OF MERINO

LIGHTWEIGHT

THERMO REGULATING

SUPER SOFT & COMFORTABLE

BREATHABLE

MOISTURE WICKING

ODOUR RESISTANT

NATURAL

ETHICALLY MADE

Customer Reviews

Based on 49 reviews
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Natalie H. (Gold Coast, AU)
Love it! Will buy more.

I have always bought Universal Tees and I wear them daily in summer. I bought the Altitude Tee - Southern Cross as underwear that could be outerwear if I needed it to be.
The shorter sleeves, close fit and slightly lower neckline were perfect when I wore it under a long sleeved top recently. I'll buy more of these "double duty" t-shirt/underwear Altitudes. Love the Southern Cross on the shoulder too and would purchase the Southern Cross version in different colours if available (navy, red or mint green would be good!).

Hey Natalie! Thank you so much for your review of the Southern Cross Altitude Tee. We can do this design on any of the Altitude Tees. Just contact Coby at hello@io-merino.com and he'll be able to sort it for you :)

M
Michelle Crick (Sydney, AU)
So great adding another T to my collection

I was hunting for a different colour and so glad I spotted this one in purple! everyone loves purple right? I am so happy to add another IO Merion T to my collection! Very happy with my purchase, soft, breathable and very comfortable

m
marian green (Maitland, AU)
Liked it so much I bought a 2nd

Bought it in green. It’s extremely soft. Washing was easy. So I bought it in purple. Love them both.

P
Penny

Item gifted to daughter.

M
Melody McCormick (Sydney, AU)
Great quality

Great quality product. Would probably go up a size next time. I was within the sizing range but it is quite tight on me. Still ok to run in but prefer a bit less fitted.
Otherwise very happy

P
Penny Thomson (Brisbane, AU)
I give this top marks

Bought this for my daughter who DOES run ALL trails - champion trail runner, represented Australia twice in overseas trail championships (worldwide), she epitomises the trail runner, happy, caring, loving nature. Ideal present for her, I think.