"I am so happy I saved them! Watching her try them on brought me right back to being 16," Erinn Downing told Newsweek.

The best gym bags have thoughtful features, like a water bottle pocket, a separate compartment for post-workout clothes and shoes, and zippered pockets to keep small items easy to reach on the go.

These products are 100% worth the TikTok hype — and you'll score them before your friends see them on Reels in two weeks ...