#3. 
YurBuds Ironman Driven($30 @ Amazon.com)
While YurBuds come in a variety of styles, some people continue to cling to the adjustable old-school over-the-head look of the 1990s. Thing is, these are only vintage in appearance; the TwistLock Technology and ergonomic design keeps them in place no matter how violently you twist, turn, jump, or shake during a CrossFit class. The cozy and ergonomic buds are also snug enough to keep water and moisture from reaching the 14.2mm neodymium drivers.
#4. 
Plantronics BackBeat Go ($60 @ Amazon.com)
Whether you’re taking business calls, LOLing at YouTube vids, or listening to music on the treadmill, the wireless and compact BackBeat Gos cover all of your bases. With Bluetooth compatibility that syncs to most smartphones, tablets, and MP3 players, there’s no plug-in necessary. You can even control volume and playback options while your device is up to 33 feet away. One full charge gives you about 4.5 hours of play with 10 days of standby.
#5.
Sennheiser CX 680 EarFin Sports Earbuds ($43 @ Amazon.com)
It’s every gym rat’s dream — headphones that block ambient noise (up to 20 db) and don’t pop out of your ears after each biceps curl. The EarFin design (that little hook popping off of the bud) is what keeps them stable when you wobble. They’re sweat-proof, waterproof, and pair especially well with Apple products (you’ll have access to the three-button control with mic that lets you manage playlists and take calls). But even if you’re not an iGuy, the sound quality is great, and the Kevlar-reinforced cables keep the wiring secure and tangle-free.
