Shokz dominates the running headphone space for people who don’t like blocking out the world around them. It’s also slim enough to be worn underneath a swim cap if you want those headphones out of sight. There’s 32 GB worth of onboard storage, so you can drag and drop all the most popular audio file formats. Shokz also has a dedicated swimming EQ mode that produces an enjoyable, balanced, and overall likable sound. Add in easy-to-reach physical controls, solid battery life, and the Bluetooth streaming missing from the original OpenSwim, and you have here a really top-notch pair of swimming headphones.