Fliphook™Flexible two-way design allows you to wear the headphones either in-ear or behind-the-ear.Never hurt. Never fall out.Thanks to TwistLock™ and FlexSoft™ technologies, these headphones are lightweight and ergonomically built to ensure secure fit and stability no matter the workout.SweatproofDesigned to endure and outlast your high intensity outdoor or indoor workout sessions in any weather conditions.Never Hurt. Never Fall OutResults matter, and when you have the perfect headphones there’s nothing standing in-between you and your workout. With their FlipHook™ design, they adapt to an in-ear or behind-the-ear fit for added convenience. A comfortable combination of FlexSoft™ ear tips and TwistLock™ technology means these buds are guaranteed never to hurt or fall out. And if you thought a little sweat or rain was going to ruin your run, think again. Thanks to IPX5 sweatproofing, JBL Endurance RUN headphones keep up with your every step, while an in-line microphone and remote ensures you’re never reaching into your pocket to answer calls.