For years, I’ve done all my trail running in one pair of Nike soccer shorts. High time for an upgrade. I opted for the Airfoil from Outdoor Research. They’re lightweight, have a small zippered pocket at the lower back, and a lie-flat cinchable waistline. My favorite feature is the built-in compression-short liner. Unlike most models, the Airfoil liner is boxer-brief style, adding to overall comfort. $60; outdoorresearch.com.