What Our Gearhead(R) Experts Are Saying:"This tank is incredibly light and breathes better than most I've tested. The mesh zones make a real difference on hot climbs, and the fabric dries fast enough that I never feel bogged down. The higher neck is great for sun coverage, which I've come to appreciate on exposed ridgelines."We reach for the Uptrail Tank Top when the forecast promises heat and the route calls for long, exposed climbs. Marmot's recycled polyester blend keeps airflow steady while wicking away sweat as our pace builds, and the airy jacquard knit stays light even when the effort ramps up. Mesh panels release heat quickly, helping us stay focused whether we're working through steep switchbacks or cruising rolling ridge sections. The high neckline adds welcome sun protection during peak-day hours, while the slight drop hem offers extra coverage as we move. With a soft feel, reliable breathability, and a design that anticipates changing exertion levels, the Uptrail Tank is tuned for trail runners who thrive in warm, open terrain.