I run distance and have found that my normal workout bras were chafing especially past 10-ish miles. I did a lot of research before purchasing this because it seemed expensive. It's also difficult (and maybe not wise?) to purchase something online, especially something that has to fit to be effective. I finally decided to order through Amazon because the return policy is fantastic and the pricing was better than anywhere else. Also, I thought if I didn't work, I could use it for shorter runs or crosstraining.

This bra is tight. It's not uncomfortably tight but it is snug. It also has a lot of adjustments that can be done, both the back and shoulders adjust. Once you get it on you need to connect it in the back (like a normal bra) and there is also a strap to be connected toward the upper back. It's really not complex at all, I attach the bottom part, spin it around, pull it up and then do the upper part.

The shoulder straps are padded and are very soft. I have a small amount of rubbing where the bra strap connects in the back (the lower part) but it's no big deal if I put Aquaphor in that spot before I go run. It's very comfortable, there is no bouncing, and best yet I'm not scared to get in the shower after my run due to chafing!

I know personal tastes vary but as of now, this is the only one that works for me. I've since purchased another one.
The shoulder straps are