Columbia omni freeze zero t shirt ladies run with comfort and confidence in this columbia omni freeze zero t shirt crafted with a v neck and short sleeves and an all over textured stretch design this t shirt has omni freeze cooling technology which is sweat activated to cool down your body core for a comfortably controlled temperature run the omni shade technology also provides upf 30 sun protection whilst the omni wick allows for sweat dispersion for quicker evaporation providing you wit