Our Altitude range is designed to fit close to your body for maximum performance, so it’s tight but still soft, with plenty of give for extra comfort. 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 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 Trail Australia mandatory gear approved thermals.

TRSA exclusive, limited edition print. Print to order.

SIZE & FIT 

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

Drop back hem and extra length in body. 

Thumb loops.

Zip Neck.

True to size. 

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

Model wears small in Charcoal marle.
Model specs - height 6'2".

BEST FOR

Snow Sports

Cycling

Running