Jaybird's new low-cost sport headphones are so good that unless you absolutely need the best tips or battery life, they should probably be the near the top of your list.

It feels like sport headphones are proliferating. It's hard to say why — maybe more people are getting into fitness, maybe they're becoming easier to make, maybe they're just lucrative. "Athleisure" fashion is a thing, certainly.

It could be that people just want the core features of modern sport headphones: Bluetooth, waterproofing, mic input, and comfort. Phrased that way it makes perfect sense.