Under Armour ArmourVent Trail Shorts

If you’re wearing shorts, you want to be cool, and these were the breeziest pair of bottoms we tested, thanks to ultrathin polyester and micromesh (not see-through). “I never had to change them and never wanted to,” says one tester. “I could even sleep in them comfortably.” The fit is slimmer than typical hiking shorts, but the four-way stretch and gusseted crotch never left our tester wishing for more range of motion. $70; men’s S-3XL, women’s 2-14; 4.3 oz.; underarmour.com