Sunscreen has a way of sliding off after a few hot, sweaty hours on a sunny trail; the Columbia Women's Coolest Cool Long-Sleeve Top offers a goop-free solution that also keeps you far cooler and more comfortable than any tee or cami could. That's because in addition to highly effective Omni-Shade protection, the shirt features Columbia's innovative Omni-ZERO technology, which means that the more you sweat, the cooler the fabric gets; at the same time, the Omni-Wick tech is moving moisture from your skin. Together, these technologies create the ultimate solution for backpackers, trekkers, and adventure athletes who need to stay cool, dry, and protected.

  • Omni-Freeze ZERO fabric reacts with your perspiration to lower the temperature of the fabric and keep you cool
  • Omni-Wick technology moves and disperses moisture away from your body so you stay drier and more comfortable
  • Omni-Shade treatment increases the shirt's sun protection to 50
  • Antimicrobial treatment prevents odors from accumulating in the fabric
  • Four-way stretch in fabric offers comfortable mobility
  • Ergonomic flatlock seaming keeps you chafe-free and comfortable

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Columbia Coolest Cool Top - Long-Sleeve - Women's

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Here's what others have to say...

5 5

Comfortable even in sweltering heat

  • Familiarity: I've used it several times
  • Fit: True to size

I ordered a small and it's skin tight but not uncomfortable. Thin fabric, keeps you cool even in mind-altering heat and humidity! Also nice odor resistance. I highly recommend.

Responded on

I don't know if I should order a small or med (I am 5 7 1/2, 125 lbs). Do you mind providing your height/weight?