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Though it may sound counterintuitive, pulling on the Columbia Women's Freeze Degree 1/2-Zip Shirt may be your best strategy against heat on your summer runs. Rather than insulating your body heat, this long-sleeve performance shirt cools you off by employing Columbia's advanced Omni-Freeze Zero rings, a sweat-activated technology that, in conjunction with Omni-Wick Evap, accelerates the wicking process in proportion to your perspiration build up, dispersing sweat over a large surface area for easier evaporation. As the polyester/elastane blend is cooling you off, it's also protecting you with UPF 50-rated Omni-Shade, so you don't have to worry about your sunscreen wearing off as you tackle that longer loop.

  • Polyester/elastane blend
  • Omni-Freeze Zero cooling
  • Omni-Wick Evap
  • Omni-Shade sun protection

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Here's what others have to say...


Favorite hot weather shirt

  • Familiarity:I've put it through the wringer
  • Fit:True to size

This keeps me so comfortable in the sun. Wicking, fast drying, fits well, and so much less sunscreen to carry in the back country.