The open design allows you to hear ambient noise and is typically safer for someone moving around where there are other people and cars like someone running outdoors or a bicyclist

The ear locks fit really well and stay in on runs, but also allows me to hear ambient noise and have conversations without needing to yank out the earbuds

Noise-isolating earbuds use typically silicone tips which jam down into the ear canal and are intended to make a seal to keep out ambient noises

What this means is very poor bass response and increased ambient noise interrupting your listening.

I like being able to hear ambient noise, but it seems like they aren't quite right yet

I don't mind the "ambient noise" that you can hear

I have small ears so they actually fit, the audio quality is so much better than Skullcandy, I can keep the volume level on these lower and still get decent sound, they let me hear ambient noises (so no they are not noise cancelling), and they don't fall out

Good sound quality while still allowing ambient noise

These are smaller than my other pair, but that is totally fine as those seem larger than necessary unless you've got some really big ears.