9 retro running shorts currently having a moment | Well+Good
Amazon.com: retro shorts
Vintage 70s Terrycloth Track Shorts/ UNISEX 1970s Red with White Running Athletic Rollerskate Shorts/ Size ... from Bottle of Bread of Baltimore, MD | ATTIC
70s Gym Shorts | Etsy
50 Years of Dubious Running Fashion | Runner's World
American Jock 70's Retro Featherweight Running Shorts White 8740 at International Jock