If there's one thing to be thankful for this year, it's tasteful workout wear. That's right ladies, fitness gear wasn't always so stylish. In fact, after watching 100 Years of Workout Style, we're tempted to stock up on more leggings, cute tanks, and sexy sports bras. You'd be surprised what women used to exercise in back in the day. We're talking everything from ankle-length skirts, denim jumpers, and thong leotards. How these ladies were able to really move in these things is beyond us. But then again, high-intensity workouts didn't exactly exist in the 20s and 30s. So the next time you get frustrated while shopping for workout clothes, you might want to check out this video first — we've definitely come a long way when it comes to fitness fashion.