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The best-of-both-worlds garment: a skirt in front, shorts underneath, so you could do a cartwheel or slide into home without flashing anyone. In the '90s the skort jumped off the tennis court and into everyday wardrobes and school-picture outfits everywhere.
Cotton cheer shorts with a white fold-over waistband, rolled once, twice, three times until the Soffe logo showed and the shorts barely did. A 1946 Fayetteville, North Carolina military-supply outfit's PE staple became the unofficial uniform of every 2000s girls' locker room.
Shiny nylon soccer shorts in checkerboard prints and highlighter colors, worn by millions of American kids who had no game to get to. Umbro shorts were the unofficial uniform of the early-90s playground — swishy, weightless, and somehow acceptable in every setting from gym class to the mall.