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Altitude Zip

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Color
Rust
Green
Dark Blue Marle
Size

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 Men’s Altitude Zip Base Layer thermal takes natural temperature regulation to a whole new level. It is the perfect ‘go to’ thermal layer for just about any adventure, especially if you’re expecting to hit a range of temperatures. Zip down when it’s mild, zip up and thumb loops on when the temperature drops. The high collar also offers an extra level of warmth beyond the Men's Altitude Crew Neck Base Layer version of this top.

Flatlock stitching, raglan sleeves and tag free to eliminate chafe and maximize comfort. The drop back hem and extra body length is designed for tucking into your outer layers. Thumb loops keep your hands warm and stop your sleeves riding up when layering.

This Base Layer Thermal top is the perfect combination of performance, warmth and comfort.

(For a more relaxed fit try our Ultra Zip.)

Ultra Trail Australia mandatory gear approved thermals.

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. 

Drop back hem and extra length in body. 

Thumb loops.

Zip Neck.

True to size. 

Model wears a size medium in Dark Khaki, and Dark Blue Marle.
Model specs - height 179cm, chest 91.5cm, waist 81cm, hips 88.3cm.

Model wears a size medium in Forest Marle, Rust, Morocaan Blue, and Green.
Model specs - height 181cm, chest 103cm, waist 81cm.

Model wears small in Black, and Charcoal Marle.
Model specs - height 173, chest 99cm, waist 76cm.


Size Guide. Contact Fit.

Snow Sports

Cycling

Running

170gsm lightweight

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 1 review
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Eric (El Dorado, US)
Cozy long sleeve for cold dark runs

1. In 6’5” - 185 lbs. I train for 50k, 50 and 100 mile races. the large fits the arms and a tad loose in the torso. I wear it as a layer over a singlet or form fit short sleeve. Ran in cold darkness 40-45 degrees 12-20 mile runs. The shirt maintains warmth while damp from sweat, and it’s very effective at wicking off sweat. While damp it’s like a scuba wetsuit it keeps you warm , yet you can still feel the breeze on your arms and torso. It’s better than my polyester long sleeve quarter zip in thermoregulation in that it doesn’t overheat/get soaked to where you feel like you have to take it off. Because it’s expensive and comes from Australia, I keep it in reserve for my longest cold runs. Other than that , it looks great and I’m very pleased with the quality and performance. Can’t wait to order another one.

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