Columbia Freeze Degree 1/2-Zip Shirt - Long-Sleeve - Women's - $56.21

It may sound counter-intuitive, but pulling on the long-sleeve Columbia Women's Freeze Degree 1/2-Zip Shirt may be your best strategy for beating the heat on your summer runs. That's because rather than keeping you warm, this long-sleeved shirt helps cool you off by employing Columbia's advanced Omni-Freeze ZERO technology. And as it's cooling you off, it's also protecting you with UPF 50-rated Omni-Shade tech so you don't have to worry about sunscreen wearing off as you take that longer loop. - $56.21