Each garment possesses technology to optimize it for a particular type of activity. If your adventure takes you to a river in the tropics, you need protection from the sun and insects. If you are headed to the mountains, fabric strength is priority. And if you are exploring a foreign city, stylish packability is key.ExOfficio is on the forefront of fabric technology to bring you the most functional apparel possible. They were among the first to utilize many of the most innovative developments: Insect Shield, dri-release, Freshguard, Icefil, and UPF Sun Guard to name just a few.