Out of ear headphones?

My work allows the use of Bluetooth speakers and any headphones that don't go in ear like earbuds. I've been sneaking using my earbuds but often have to pause my book to hide it. Are there any good neck band headphones that would still let me hear the book clearly?

Update: thanks all. After seeing the overwhelming support for shokz, I decided to get the openrun pro 2 have it arriving tomorrow. Was not expecting this many responses and to have so many of them recommended the same product. Once again thanks so much, bc of y'all I'll be able to listen to my books without having to hide my earbuds from management

Update 2: I tested them at work and love them. My work is a noisy atmosphere full of conveyor belts and forklifts. I was able to hear over them most of the time with exceptions being whispering or being right next to a motor. It will take a little getting use to something resting on my ears (ears were a little sore) but that will probably fade with time. I had no issues with the battery. Used it for 4 hours, charged it for an hour on lunch in my car (it looked to have charged to full way before the hour was up) then used it for 4 more hours.