These don't sit in or over the ear canal, but don't need to press against your skull like bone conduction. Great for cycling or running. I've got a pair and they're supremely comfortable compared to bone conduction or in-ear, and stay on your ears really well.
There's also F2 model for about $40, which wraps around your neck https://www.amazon.com.au/Headphones-Conduction-Microphones-…
I have the first version of these, looks like they fixed some of the complaints about the first version (massive case, IPX4)
Pretty good for wearing while running etc