Get your ear tip size right—then go one step further

Stock silicone tips are designed to fit the average ear, which means there's a decent chance they're not the right option for you. If your earbuds ever feel like they're working their way out mid-workout, this is very likely a fit problem. Memory foam tips like these solve two problems at once: they mold to your ear canal for a passive noise seal, and that same seal creates enough friction to keep earbuds locked in during movement. I recommend looking at the brand of your earbuds and buying straight from the source. For instance, Apple lets you buy new ear tips for your AirPods for around $10.

There are plenty of DIY fixes online, but unless you’re particularly crafty, they might be more trouble than they’re worth. The adhesive might give out the moment you actually sweat, which can leave residue on the earbud housing. A $15-dollar pair of silicone ear hooks (like these) does the same job properly: they clip onto the earbud body and hook around the outer ear, and they're designed to survive a sweaty run without peeling off. Of course, you can save time and simply opt for earbuds with built-in ear hook designs. I’m currently writing an in-depth review of the Suunto Spark open-ear headphones, but I’ll go ahead and give an early recommendation for their ear hook design right here.