Ever wish you could raise a force field against nature's pesky little bugs and buzzers? Now you can. The Men's Bug Shield Long Sleeve Crew from Columbia Sportswear is a virtual trifecta of protective awesomeness. New Insect Blocker technology keeps six-legged pests at bay, Omni-Shade® offers UPF 30 sun protection, and Omni-Wick® advanced evaporation technology keeps you cool, dry, and collected - leaving you free to focus on the adventure at hand. We package all this protection in a streamlined, classic long sleeve crew that works as well under vests and shells as it does on its own.