Altitude Active Tee

Base Layer
Availability: In stock

Our famous Altitude Tee just got a whole lot more active. The new Altitude Active Tee base layer is incredibly lightweight, breathable and offers a range of impressive comfort and performance features. And with a new sportier fit, we’re taking performance and comfort to the next level.

Step 3: Add to Cart*


After talking with some of our most adventurous customers, we’ve given our Altitude Tee a major make over and come up with a new, improved active Tee that’s ready for anything. We’ve kept everything that made the original Altitude Tee a firm favourite, and added some extra active styling to make sure you’re always comfortable and protected from the elements.

The new higher round neck offers extra protection, plus you’ll find the new sleeker, sportier, tapered fit is designed to suit all levels of activity. When Mother Nature throws everything she’s got at you, this one can be worn as part of a layering system. And when the temperature rises, you’ve got the perfect lightweight and breathable Tee that delivers the comfort and performance you need to go the distance.

Rest assured you’ll still find the soft-touch comfort, natural breathability, temperature regulation, moisture wicking and odor-resistance you’ve come to expect from the Altitude range made with our unique Enigma MicroMerino® fabric. It’s just got a whole new fit and feel.

(This tee has been designed to hug your body with a next to skin, contact fit, so if you want less hugs and more room, try going up a size.)

Key Features:

  • ioMerino Flagship Enigma MicroMerino® fabric
  • Four way stretch
  • Lightweight and breathable
  • Temperature regulating
  • Chafe resistance
  • Odor resistance
  • Raglan sleeve
  • Tag free
  • Drop back hem

What you need to know:

  • Layering: Base layer
  • Weight: Lightweight (170gsm)
  • Fit: Contact
  • Length: Regular - drop back hem
  • Fabric: Enigma 96% Australian Merino and 4% Elastane

Natural MicroMerino® benefits:

  • Naturally breathable and temperature regulating. Helps keep you warm when it’s cool and cool when it’s warm.
  • Moisture Wicking. Stays warm even when it’s wet and naturally wicks moisture away from the skin for extra comfort.
  • Odor-Resistant. Natural antimicrobial properties to prevent odor – especially good for travelling and extended adventures.
  • Made with only the softest, finest Australian Merino wool. Designed and knitted in Australia for adventure.
  • An ethically and sustainably produced natural fibre. Good for the people who make it. Good for the planet.
Altitude Racer Back Tank

Altitude Racer Back Tank

  • Full Star
  • Full Star
  • Full Star
  • Full Star
  • Full Star
2 Review(s) | add your review
Zone Tee Grey

Zone Tee Grey

  • Full Star
  • Full Star
  • Full Star
  • Full Star
  • Half Star
2 Review(s) | add your review


The ioMerino 'Enigma' is our flagship fabric. Featured in our Altitude range. 

'Enigma' is a lightweight 170gsm single jersey MicroMerino®, knitted using 18.5 micron 96% full-fleece Australian Merino wool knitted and 4% elastin.

The combination of merino wool and 4% elastin in the 'Enigma' fabric ensure perfect body contact, eliminates excessive bulk, and a 4-way stretch allowing your limbs to move freely as the fabric does not inhibit your range of motion.

Benefits of the ioMerino 'Enigma' fabric:

  • Moisture management wicking - moving moisture away from the body keeping the body dry and cool
  • Antimicrobial - Moisture absorption properties reduce the tendencies for a build-up of odour.
  • Luxuriously soft next to skin
  • Breathable and temperature regulating
  • Ultra-comfortable warmth
  • Maximum warmth, minimal weight
  • Quick drying

All ioMerino fabrics are fully machine-washable.

You're reviewing: Altitude Active Tee

      

Sizing given in Australia, UK, American, and European standard sizes

Australian 6-8 8-10 10-12 12-14 14-16
US 2-4 4-6 6-8 8-10 10-12
European 34-36 36-38 38- 40 40-42 42-44


XS inches 29.5–32.5 23.5–26 33–35.5
cm 75-82.5 60-66 83.5-90
S inches 32.5–35.5 26–29 35.5–38.5
cm 82.5-90 66-73.5 90-97.5
M inches 35.5–38 29–31.5 38.5–41
cm 90-96.5 73.5-80 97.5-104
L inches 38–41 31.5–34.5 41–44
cm 96.5-104 80-87.5 104 -111.5
XL inches 41–44.5 34.5–38.5 44–47
cm 104-113 87.5-94.5 111.5-119.5
XXL inches 44.5–48.5 38.5–42.5 47–50
cm 113-123 97.5-108 119-127