After using this for several weeks, here are my thoughts.
I love the zipper! No worries about my phone falling out. The material is great! It’s not waterproof but my phone isn’t dripping wet.
What I don’t love...my phone is HUGE and unless I remove it from the case with popsocket, I can’t get it to zip. I need my phone in the case for when I wipe out or drop it. Again, because my phone is HUGE, the clip feels a bit weak and am concerned it’s not going to stay clipped.
As long as I’m wearing a sports bra with a wide strap, my phone doesn’t budge and I don’t even notice it. Not so much with a thinner strap. It will bounce around. I also tried clipping it to the waistband on my running leggings, maybe because my phone is giant but it was impossible to deal with. I also paid the extra for the little pocket but was left underwhelmed. I thought it would at least be big enough for a license or card. I can hardly get a key in it.
I think this would be great for a giant phone if they made an 2X with a wider clip.
If you’ve got a normal size phone, I think it will work great!