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Altitude Tank

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Color
Black
Charcoal
Size

Whether you’re looking for a contact fit base layer for extra core warmth in cold conditions, or a stand-alone tank to wear in milder temperatures, The Men's Altitude Merino Wool Tank is a great all-rounder. Training, running, climbing, riding, you name it, the Altitude Base Layer Tank has your core covered

Tag-free and flatlock stitching help eliminate chafe and maximize comfort. 

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.

Designed to be worn as a body tight ‘contact fit’ layer. 

Regular body length. Shorter than the Altitude long sleeve styles.

True to size. 

Model wears size medium in black and size small in rust and charcoal.
Model specs - height 181cm, chest 103cm, waist 81cm.

Size Guide. Contact Fit.

Running

Hiking 

Cycling

170gsm lightweight

18.5 microns

96% superfine Australian Merino

4% Elastane - for an easy all-way stretch.

A MicroMerino® Fabric.

BENEFITS OF MERINO

LIGHTWEIGHT

THERMO REGULATING

SUPER SOFT & COMFORTABLE

BREATHABLE

MOISTURE WICKING

ODOUR RESISTANT

NATURAL

ETHICALLY MADE

Customer Reviews

Based on 5 reviews
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K
Karl

Customer service is working hard to resolve an issue I had with the first tank I ordered. They are sending me another one. I have updated my review.

D
Darryl

Expected fit, light, warm and comfortable. Quick delivery and a satisfying shopping experience.

M
Michael Harry (Brisbane, AU)
Altitude Tank

Nice tank , light comfortable and socks sweat like a champ, my second IO Merino purchase, looking forward to trying the tracksuit pants soon

B
Ben S. (Brisbane, AU)
Altitude tank

I use this top as a base layer when kayaking and it’s brilliant!

D
Doug Rutherford (Perth, AU)
Used as a base layer for winter cycling

good warmth and beatheabilty. Probably too warm for all season riding. Would love one in a mesh for summer if possible!