First Ascent Men's X-Trail Running Tee

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The Men's X-Trail running tee is the ideal lightweight tee for conquering your next trail run. Made with Polygiene® permanent odor fabric technology, this tee will keep you fresher for longer on the trails. The design and construction allows for optimal freedom of movement, making it the ideal running tee for your next mountain run.


Mesh back and underarm panelling to increase breathability

Reflective trims for added visibility and safety

Lightweight fabrication for optimal freedom of movement

Polygiene prevents growth of odor-causing bacteria

Wear more. Wash less

Minimal enviromental footprint - Climate smart


First Ascent Polygiene

Polygiene prevents the growth of odor-causing bacteria at the source. The small particles of the Polygiene treatment are trapped by a mechanical binding in all gaps, fiber joints, and holes in the fabric. Thanks to the strong binding forces combined with the big surface provided by the fabric, a big amount of treatment can stick to the fabric. It stays in the fabric permanently in the same way a grass stain stays on a white pair of trousers, wash after wash.


Size chart

NB see fit guide tab for fit comparisons

Size XS S M L XL 2XL 3XL 4XL 5XL
Chest 84-90 90-96 96-104 104-112 112-120 122-130 132-140 142-150 152-160
Waist 69-75 75-81 81-89 89-97 97-105 107-115 117-125 127-135 137-145
Hip 84-90 90-96 96-104 104-112 112-120 122-130 132-140 142-150 152-160
Sleeve over arm 76 78 80 82 84 86.5 89 91.5 94